CA381743A - Microphone - Google Patents

Microphone

Info

Publication number
CA381743A
CA381743A CA381743A CA381743DA CA381743A CA 381743 A CA381743 A CA 381743A CA 381743 A CA381743 A CA 381743A CA 381743D A CA381743D A CA 381743DA CA 381743 A CA381743 A CA 381743A
Authority
CA
Canada
Prior art keywords
microphone
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
CA381743A
Other languages
French (fr)
Inventor
William Sutton George
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.)
Siemens Brothers and Co Ltd
Original Assignee
Siemens Brothers and Co Ltd
Publication date
Application granted granted Critical
Publication of CA381743A publication Critical patent/CA381743A/en
Expired legal-status Critical Current

Links

CA381743A Microphone Expired CA381743A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA381743T

Publications (1)

Publication Number Publication Date
CA381743A true CA381743A (en) 1939-05-30

Family

ID=35386981

Family Applications (1)

Application Number Title Priority Date Filing Date
CA381743A Expired CA381743A (en) Microphone

Country Status (1)

Country Link
CA (1) CA381743A (en)

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