CH23414A - Telephone system with central microphone battery - Google Patents

Telephone system with central microphone battery

Info

Publication number
CH23414A
CH23414A CH23414A CH23414DA CH23414A CH 23414 A CH23414 A CH 23414A CH 23414 A CH23414 A CH 23414A CH 23414D A CH23414D A CH 23414DA CH 23414 A CH23414 A CH 23414A
Authority
CH
Switzerland
Prior art keywords
telephone system
central microphone
microphone battery
battery
central
Prior art date
Application number
CH23414A
Other languages
German (de)
Inventor
Aktien-Gesellschaft Sie Halske
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of CH23414A publication Critical patent/CH23414A/en

Links

CH23414A 1901-02-11 1901-02-11 Telephone system with central microphone battery CH23414A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH23414T 1901-02-11

Publications (1)

Publication Number Publication Date
CH23414A true CH23414A (en) 1902-07-31

Family

ID=4231534

Family Applications (1)

Application Number Title Priority Date Filing Date
CH23414A CH23414A (en) 1901-02-11 1901-02-11 Telephone system with central microphone battery

Country Status (1)

Country Link
CH (1) CH23414A (en)

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