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CA537660A - Filter for sound vibrations and a microphone and telephone provided therewith - Google Patents

Filter for sound vibrations and a microphone and telephone provided therewith

Info

Publication number
CA537660A
CA537660A CA537660A CA537660DA CA537660A CA 537660 A CA537660 A CA 537660A CA 537660 A CA537660 A CA 537660A CA 537660D A CA537660D A CA 537660DA CA 537660 A CA537660 A CA 537660A
Authority
CA
Canada
Prior art keywords
microphone
filter
provided therewith
sound vibrations
telephone provided
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
CA537660A
Other languages
French (fr)
Inventor
De Vries Machiel
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 CA537660A publication Critical patent/CA537660A/en
Expired legal-status Critical Current

Links

CA537660A Filter for sound vibrations and a microphone and telephone provided therewith Expired CA537660A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA537660T

Publications (1)

Publication Number Publication Date
CA537660A true CA537660A (en) 1957-03-05

Family

ID=35692293

Family Applications (1)

Application Number Title Priority Date Filing Date
CA537660A Expired CA537660A (en) Filter for sound vibrations and a microphone and telephone provided therewith

Country Status (1)

Country Link
CA (1) CA537660A (en)

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