CA309485A - Protective means for sound reproduction - Google Patents

Protective means for sound reproduction

Info

Publication number
CA309485A
CA309485A CA309485A CA309485DA CA309485A CA 309485 A CA309485 A CA 309485A CA 309485 A CA309485 A CA 309485A CA 309485D A CA309485D A CA 309485DA CA 309485 A CA309485 A CA 309485A
Authority
CA
Canada
Prior art keywords
sound reproduction
protective means
protective
reproduction
sound
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
CA309485A
Other languages
French (fr)
Inventor
B. Austin Kirby
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.)
General Electric Canada Co
Original Assignee
Canadian General Electric Co Ltd
Publication date
Application granted granted Critical
Publication of CA309485A publication Critical patent/CA309485A/en
Expired legal-status Critical Current

Links

CA309485A Protective means for sound reproduction Expired CA309485A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA309485T

Publications (1)

Publication Number Publication Date
CA309485A true CA309485A (en) 1931-03-17

Family

ID=35268808

Family Applications (1)

Application Number Title Priority Date Filing Date
CA309485A Expired CA309485A (en) Protective means for sound reproduction

Country Status (1)

Country Link
CA (1) CA309485A (en)

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