CH30402A - Microphone for telephone devices - Google Patents

Microphone for telephone devices

Info

Publication number
CH30402A
CH30402A CH30402A CH30402DA CH30402A CH 30402 A CH30402 A CH 30402A CH 30402 A CH30402 A CH 30402A CH 30402D A CH30402D A CH 30402DA CH 30402 A CH30402 A CH 30402A
Authority
CH
Switzerland
Prior art keywords
microphone
telephone devices
telephone
devices
Prior art date
Application number
CH30402A
Other languages
French (fr)
Inventor
L Bassompierre
L Darbeau
Original Assignee
L Bassompierre
L Darbeau
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 L Bassompierre, L Darbeau filed Critical L Bassompierre
Publication of CH30402A publication Critical patent/CH30402A/en

Links

CH30402A 1904-01-11 1904-01-11 Microphone for telephone devices CH30402A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH30402T 1904-01-11

Publications (1)

Publication Number Publication Date
CH30402A true CH30402A (en) 1904-12-15

Family

ID=4247258

Family Applications (1)

Application Number Title Priority Date Filing Date
CH30402A CH30402A (en) 1904-01-11 1904-01-11 Microphone for telephone devices

Country Status (1)

Country Link
CH (1) CH30402A (en)

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