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CA448798A - Carbon microphone - Google Patents

Carbon microphone

Info

Publication number
CA448798A
CA448798A CA448798A CA448798DA CA448798A CA 448798 A CA448798 A CA 448798A CA 448798 A CA448798 A CA 448798A CA 448798D A CA448798D A CA 448798DA CA 448798 A CA448798 A CA 448798A
Authority
CA
Canada
Prior art keywords
carbon microphone
microphone
carbon
Prior art date
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
CA448798A
Other languages
French (fr)
Inventor
Anthony Johannes Voorhoeve Nicolass
Willem Knevel Jan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Publication date
Application granted granted Critical
Publication of CA448798A publication Critical patent/CA448798A/en
Expired legal-status Critical Current

Links

CA448798A Carbon microphone Expired CA448798A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA448798T

Publications (1)

Publication Number Publication Date
CA448798A true CA448798A (en) 1948-05-25

Family

ID=35566497

Family Applications (1)

Application Number Title Priority Date Filing Date
CA448798A Expired CA448798A (en) Carbon microphone

Country Status (1)

Country Link
CA (1) CA448798A (en)

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