FR1242879A - Indoor telephone system - Google Patents

Indoor telephone system

Info

Publication number: FR1242879A
Authority: FR; France
Prior art keywords: telephone system; indoor telephone; indoor; telephone
Prior art date: 1957-11-20
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.): Expired

Application number

FR798350A

Other languages

French (fr)

Inventor

Owsiej Baron

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.)

1957-11-20

Filing date

1959-06-23

Publication date

1960-10-07

1957-11-20 Priority claimed from GB36109/57A external-priority patent/GB843809A/en

1959-06-23 Application filed filed Critical

1959-06-23 Priority to FR798350A priority Critical patent/FR1242879A/en

1960-10-07 Application granted granted Critical

1960-10-07 Publication of FR1242879A publication Critical patent/FR1242879A/en

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/04—Arrangements for interconnection not involving centralised switching involving a separate line for each pair of parties
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/001—Two-way communication systems between a limited number of parties

Landscapes

Engineering & Computer Science (AREA)
Signal Processing (AREA)

FR798350A 1957-11-20 1959-06-23 Indoor telephone system Expired FR1242879A (en)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
FR798350A FR1242879A (en)	1957-11-20	1959-06-23	Indoor telephone system

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
GB36109/57A GB843809A (en)	1957-11-20	1957-11-20	Improvements in and relating to internal telephone systems
FR798350A FR1242879A (en)	1957-11-20	1959-06-23	Indoor telephone system

Publications (1)

Publication Number	Publication Date
FR1242879A true FR1242879A (en)	1960-10-07

Family

ID=26184139

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR798350A Expired FR1242879A (en)	1957-11-20	1959-06-23	Indoor telephone system

Country Status (1)

Country	Link
FR (1)	FR1242879A (en)

1959
- 1959-06-23 FR FR798350A patent/FR1242879A/en not_active Expired

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