KR880020909U - 스피커 보호장치 - Google Patents

스피커 보호장치

Info

Publication number: KR880020909U
Authority: KR; South Korea
Prior art keywords: speaker protection; speaker; protection
Prior art date: 1987-04-10
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Granted

Application number

KR2019870005063U

Other languages

English (en)

Other versions

KR900007555Y1 (ko

Inventor

오희석

Original Assignee

주식회사 금성사

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1987-04-10

Filing date

1987-04-10

Publication date

1988-11-30

1987-04-10 Application filed by 주식회사 금성사 filed Critical 주식회사 금성사

1987-04-10 Priority to KR2019870005063U priority Critical patent/KR900007555Y1/ko

1988-11-30 Publication of KR880020909U publication Critical patent/KR880020909U/ko

1990-08-20 Application granted granted Critical

1990-08-20 Publication of KR900007555Y1 publication Critical patent/KR900007555Y1/ko

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/007—Protection circuits for transducers

Landscapes

Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Acoustics & Sound (AREA)
Signal Processing (AREA)
Amplifiers (AREA)

KR2019870005063U 1987-04-10 1987-04-10 스피커 보호장치 Expired KR900007555Y1 (ko)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
KR2019870005063U KR900007555Y1 (ko)	1987-04-10	1987-04-10	스피커 보호장치

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
KR2019870005063U KR900007555Y1 (ko)	1987-04-10	1987-04-10	스피커 보호장치

Publications (2)

Publication Number	Publication Date
KR880020909U true KR880020909U (ko)	1988-11-30
KR900007555Y1 KR900007555Y1 (ko)	1990-08-20

Family

ID=19261560

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
KR2019870005063U Expired KR900007555Y1 (ko)	1987-04-10	1987-04-10	스피커 보호장치

Country Status (1)

Country	Link
KR (1)	KR900007555Y1 (ko)

1987
- 1987-04-10 KR KR2019870005063U patent/KR900007555Y1/ko not_active Expired

Also Published As

Publication number	Publication date
KR900007555Y1 (ko)	1990-08-20

Publication	Publication Date	Title
SE8703414D0 (sv)	1987-09-02	Horselskydd
DK26889A (da)	1989-03-22	Hoejttalersystem
DK41788A (da)	1988-07-30	Mikrofon
KR870014048U (ko)	1987-09-11	헤드폰
DK68386A (da)	1986-02-12	Hoejttaler
NO174370C (no)	1994-04-20	Höyttaler-anordning
DK204589D0 (da)	1989-04-27	Hoejttaleranlaeg
ATA70686A (de)	1987-08-15	Lautsprecheranordnung
KR880020909U (ko)	1988-11-30	스피커 보호장치
KR890008076U (ko)	1989-05-18	스피커 보호 회로
KR890005966U (ko)	1989-04-21	스피커
KR900011168U (ko)	1990-06-04	스피커
KR870019341U (ko)	1987-12-28	스피커
KR900004134U (ko)	1990-02-08	라우드 스피커
KR880018800U (ko)	1988-10-29	스피커
KR890009873U (ko)	1989-05-31	스피커
KR880018799U (ko)	1988-10-29	스피커
KR880023071U (ko)	1988-12-27	스피커
KR890001809U (ko)	1989-03-20	스피커
KR890001817U (ko)	1989-03-20	스피커
KR890001819U (ko)	1989-03-20	스피커
KR890022169U (ko)	1989-11-03	스피커
KR900009385U (ko)	1990-05-04	스피커
DK270688D0 (da)	1988-05-18	Hoejttaler
KR900009389U (ko)	1990-05-04	스피커

Legal Events

Date	Code	Title	Description
1987-04-10	A201	Request for examination
1987-04-10	UA0108	Application for utility model registration	Comment text: Application for Utility Model Registration Patent event code: UA01011R08D Patent event date: 19870410
1987-04-10	UA0201	Request for examination	Patent event date: 19870410 Patent event code: UA02012R01D Comment text: Request for Examination of Application
1988-11-30	UG1501	Laying open of application
1990-02-27	E902	Notification of reason for refusal
1990-02-27	UE0902	Notice of grounds for rejection	Comment text: Notification of reason for refusal Patent event code: UE09021S01D Patent event date: 19900227
1990-08-20	UG1604	Publication of application	Patent event code: UG16041S01I Comment text: Decision on Publication of Application Patent event date: 19900723
1990-10-29	E701	Decision to grant or registration of patent right
1990-10-29	UE0701	Decision of registration	Patent event date: 19901029 Comment text: Decision to Grant Registration Patent event code: UE07011S01D
1991-01-21	REGI	Registration of establishment
1991-01-21	UR0701	Registration of establishment	Patent event date: 19910121 Patent event code: UR07011E01D Comment text: Registration of Establishment
1991-01-21	UR1002	Payment of registration fee	Start annual number: 1 End annual number: 3 Payment date: 19910121
1993-04-01	UR1001	Payment of annual fee	Payment date: 19930329 Start annual number: 4 End annual number: 4
1994-07-06	UR1001	Payment of annual fee	Payment date: 19940629 Start annual number: 5 End annual number: 5
1994-12-28	FPAY	Annual fee payment	Payment date: 19941228 Year of fee payment: 6
1994-12-28	UR1001	Payment of annual fee	Payment date: 19941228 Start annual number: 6 End annual number: 6
1996-08-21	LAPS	Lapse due to unpaid annual fee
1996-08-21	UC1903	Unpaid annual fee	Termination date: 19971210 Termination category: Default of registration fee