CA685594A - Combined microphone and earphone sets - Google Patents

Combined microphone and earphone sets

Info

Publication number
CA685594A
CA685594A CA685594A CA685594DA CA685594A CA 685594 A CA685594 A CA 685594A CA 685594 A CA685594 A CA 685594A CA 685594D A CA685594D A CA 685594DA CA 685594 A CA685594 A CA 685594A
Authority
CA
Canada
Prior art keywords
combined microphone
earphone sets
earphone
sets
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
CA685594A
Inventor
E. Bonnin Louis
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 CA685594A publication Critical patent/CA685594A/en
Expired legal-status Critical Current

Links

CA685594A Combined microphone and earphone sets Expired CA685594A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA685594T

Publications (1)

Publication Number Publication Date
CA685594A true CA685594A (en) 1964-05-05

Family

ID=35988212

Family Applications (1)

Application Number Title Priority Date Filing Date
CA685594A Expired CA685594A (en) Combined microphone and earphone sets

Country Status (1)

Country Link
CA (1) CA685594A (en)

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