CA599289A - Unidirectional microphone - Google Patents

Unidirectional microphone

Info

Publication number
CA599289A
CA599289A CA599289A CA599289DA CA599289A CA 599289 A CA599289 A CA 599289A CA 599289 A CA599289 A CA 599289A CA 599289D A CA599289D A CA 599289DA CA 599289 A CA599289 A CA 599289A
Authority
CA
Canada
Prior art keywords
unidirectional microphone
unidirectional
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
CA599289A
Inventor
M. Wiggins Alpha
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.)
Bosch Security Systems Inc
Original Assignee
Electro Voice Inc
Publication date
Application granted granted Critical
Publication of CA599289A publication Critical patent/CA599289A/en
Expired legal-status Critical Current

Links

CA599289A Unidirectional microphone Expired CA599289A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA599289T

Publications (1)

Publication Number Publication Date
CA599289A true CA599289A (en) 1960-06-07

Family

ID=35815070

Family Applications (1)

Application Number Title Priority Date Filing Date
CA599289A Expired CA599289A (en) Unidirectional microphone

Country Status (1)

Country Link
CA (1) CA599289A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3201528A (en) * 1962-07-20 1965-08-17 Audivox Inc Multi-directional hearing aid
US3240883A (en) * 1961-05-25 1966-03-15 Shure Bros Microphone

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3240883A (en) * 1961-05-25 1966-03-15 Shure Bros Microphone
US3201528A (en) * 1962-07-20 1965-08-17 Audivox Inc Multi-directional hearing aid

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