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JPS52139304A - Reservation system for key telephone equipment - Google Patents

Reservation system for key telephone equipment

Info

Publication number
JPS52139304A
JPS52139304A JP5531776A JP5531776A JPS52139304A JP S52139304 A JPS52139304 A JP S52139304A JP 5531776 A JP5531776 A JP 5531776A JP 5531776 A JP5531776 A JP 5531776A JP S52139304 A JPS52139304 A JP S52139304A
Authority
JP
Japan
Prior art keywords
reservation system
key telephone
telephone equipment
reservation
economization
Prior art date
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.)
Pending
Application number
JP5531776A
Other languages
Japanese (ja)
Inventor
Koichi Sekiguchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Iwatsu Electric Co Ltd
Original Assignee
Iwatsu Electric Co Ltd
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.)
Filing date
Publication date
Application filed by Iwatsu Electric Co Ltd filed Critical Iwatsu Electric Co Ltd
Priority to JP5531776A priority Critical patent/JPS52139304A/en
Publication of JPS52139304A publication Critical patent/JPS52139304A/en
Priority to US06/066,927 priority patent/US4410767A/en
Pending legal-status Critical Current

Links

Landscapes

  • Sub-Exchange Stations And Push- Button Telephones (AREA)

Abstract

PURPOSE: To reduce the number of the cable core wire and thus to achieve economization by performing control of the reservation circuit using the control line.
COPYRIGHT: (C)1977,JPO&Japio
JP5531776A 1976-05-17 1976-05-17 Reservation system for key telephone equipment Pending JPS52139304A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP5531776A JPS52139304A (en) 1976-05-17 1976-05-17 Reservation system for key telephone equipment
US06/066,927 US4410767A (en) 1976-05-17 1979-08-16 Key telephone system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5531776A JPS52139304A (en) 1976-05-17 1976-05-17 Reservation system for key telephone equipment

Publications (1)

Publication Number Publication Date
JPS52139304A true JPS52139304A (en) 1977-11-21

Family

ID=12995165

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5531776A Pending JPS52139304A (en) 1976-05-17 1976-05-17 Reservation system for key telephone equipment

Country Status (1)

Country Link
JP (1) JPS52139304A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53116706A (en) * 1977-03-22 1978-10-12 Tamura Electric Works Ltd Button telephone set

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5440402A (en) * 1977-09-05 1979-03-29 Banzai Ltd Device for testing straightly advancing performance of automobile

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5440402A (en) * 1977-09-05 1979-03-29 Banzai Ltd Device for testing straightly advancing performance of automobile

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53116706A (en) * 1977-03-22 1978-10-12 Tamura Electric Works Ltd Button telephone set
JPS5710625B2 (en) * 1977-03-22 1982-02-27

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