DK7633C - Combined Microphone and Telephone. - Google Patents

Combined Microphone and Telephone.

Info

Application number

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Inventor

Konrad Hoeflinger

Carl Wolffhardt

Original Assignee

Konrad Hoeflinger

Carl Wolffhardt

Publication date

1905-06-26

1905-06-26 Application granted granted Critical

1905-06-26 Publication of DK7633C publication Critical patent/DK7633C/en

DK7633D Combined Microphone and Telephone. DK7633C (en)

Application Number	Priority Date	Filing Date	Title
DK7633T

Publication Number	Publication Date
DK7633C true DK7633C (en)	1905-06-26

Application Number	Title	Priority Date	Filing Date
DK7633D DK7633C (en)			Combined Microphone and Telephone.

Country	Link
DK (1)	DK7633C (en)

Publication	Publication Date	Title
DK7633C (en)	1905-06-26	Combined Microphone and Telephone.
AT25579B (en)	1906-09-10	Telephone mouthpiece.
FR4992E (en)	1905-11-25	Telephone microphone and receiver
DK8078C (en)	1905-12-04	Microphone.
DK8079C (en)	1905-12-04	Microphone.
FR377966A (en)	1907-09-20	Telephone transmitter
FR380185A (en)	1907-11-30	Speaker phone
FI2886A (en)	1907-03-12	Ihopskjutbar phone phone
DK7484C (en)	1905-05-01	Telephone call counter.
FR386720A (en)	1908-06-20	Microphone
FR385844A (en)	1908-05-26	Microphone
CH41183A (en)	1908-10-01	Microphone
ES39864A1 (en)	1907-02-16	Improvements in telephone sets.
FR382438A (en)	1908-02-06	Telephone receiver
FR377472A (en)	1907-09-07	Telephone transmitter
FR380559A (en)	1907-12-12	Mobile stage
DK8616C (en)	1906-07-09	Microphone.
DK10671C (en)	1908-03-23	Device for Senders for Wireless Telephony and Telegraphy.
DK10838C (en)	1908-05-18	Device for Senders for Wireless Telephony and Telegraphy.
FR4091E (en)	1905-05-22	Telephone receiver
CH41340A (en)	1908-10-16	Self-collecting telephone station
AT25094B (en)	1906-07-25	Hydrodynamic microphone.
AT24623B (en)	1906-06-25	Telephone relay.
DK8286C (en)	1906-02-26	Telephone.
FR351867A (en)	1905-07-28	Microphone