CA348881A - Microphone - Google Patents

Microphone

Info

Publication number
CA348881A
CA348881A CA348881DA CA348881A CA 348881 A CA348881 A CA 348881A CA 348881D A CA348881D A CA 348881DA CA 348881 A CA348881 A CA 348881A
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
Other languages
French (fr)
Inventor
Ramsay Wigan Edmund
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 CA348881A publication Critical patent/CA348881A/en
Expired legal-status Critical Current

Links

CA348881D Microphone Expired CA348881A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA348881T

Publications (1)

Publication Number Publication Date
CA348881A true CA348881A (en) 1935-03-12

Family

ID=35336845

Family Applications (1)

Application Number Title Priority Date Filing Date
CA348881D Expired CA348881A (en) Microphone

Country Status (1)

Country Link
CA (1) CA348881A (en)

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