CA427122A - Microphone - Google Patents

Microphone

Info

Publication number
CA427122A
CA427122A CA427122A CA427122DA CA427122A CA 427122 A CA427122 A CA 427122A CA 427122 A CA427122 A CA 427122A CA 427122D A CA427122D A CA 427122DA CA 427122 A CA427122 A CA 427122A
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
CA427122A
Other languages
French (fr)
Inventor
Cheyney Beekley Francis
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 CA427122A publication Critical patent/CA427122A/en
Expired legal-status Critical Current

Links

CA427122A Microphone Expired CA427122A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA427122T

Publications (1)

Publication Number Publication Date
CA427122A true CA427122A (en) 1945-05-01

Family

ID=35538151

Family Applications (1)

Application Number Title Priority Date Filing Date
CA427122A Expired CA427122A (en) Microphone

Country Status (1)

Country Link
CA (1) CA427122A (en)

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