CH240685A - Teilnehmer-Anrufeinrichtung in elektro-akustischen Übertragungsanlagen. - Google Patents

Teilnehmer-Anrufeinrichtung in elektro-akustischen Übertragungsanlagen.

Info

Publication number: CH240685A
Authority: CH; Switzerland
Prior art keywords: electro; transmission systems; acoustic transmission; subscriber call; call facility
Prior art date: 1942-11-06

Application number

Other languages

English (en)

Inventor

Ag Autophon

Original Assignee

Ag Autophon

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.)

1942-11-06

Filing date

1942-11-06

Publication date

1946-01-15

1942-11-06 Application filed by Ag Autophon filed Critical Ag Autophon

1946-01-15 Publication of CH240685A publication Critical patent/CH240685A/de

Classifications

- 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)
Devices For Supply Of Signal Current (AREA)

CH240685D 1942-11-06 1942-11-06 Teilnehmer-Anrufeinrichtung in elektro-akustischen Übertragungsanlagen. CH240685A (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CH606805X		1942-11-06

Publications (1)

Publication Number	Publication Date
CH240685A true CH240685A (de)	1946-01-15

Family

ID=4523128

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH240685D CH240685A (de)	1942-11-06	1942-11-06	Teilnehmer-Anrufeinrichtung in elektro-akustischen Übertragungsanlagen.

Country Status (2)

Country	Link
CH (1)	CH240685A (de)
GB (1)	GB606805A (de)

1942
- 1942-11-06 CH CH240685D patent/CH240685A/de unknown
1945
- 1945-03-08 GB GB5804/45A patent/GB606805A/en not_active Expired

Also Published As

Publication number	Publication date
GB606805A (en)	1948-08-20

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