CA681814A - Electroacoustical apparatus - Google Patents

Electroacoustical apparatus

Info

Publication number
CA681814A
CA681814A CA681814A CA681814DA CA681814A CA 681814 A CA681814 A CA 681814A CA 681814 A CA681814 A CA 681814A CA 681814D A CA681814D A CA 681814DA CA 681814 A CA681814 A CA 681814A
Authority
CA
Canada
Prior art keywords
electroacoustical
electroacoustical apparatus
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
CA681814A
Inventor
C. Ramsey Robert
A. Beaverson Wayne
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 CA681814A publication Critical patent/CA681814A/en
Expired legal-status Critical Current

Links

CA681814A Electroacoustical apparatus Expired CA681814A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA681814T

Publications (1)

Publication Number Publication Date
CA681814A true CA681814A (en) 1964-03-10

Family

ID=35982898

Family Applications (1)

Application Number Title Priority Date Filing Date
CA681814A Expired CA681814A (en) Electroacoustical apparatus

Country Status (1)

Country Link
CA (1) CA681814A (en)

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