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CA304286A - Sound or vibration transmitting apparatus - Google Patents

Sound or vibration transmitting apparatus

Info

Publication number
CA304286A
CA304286A CA304286A CA304286DA CA304286A CA 304286 A CA304286 A CA 304286A CA 304286 A CA304286 A CA 304286A CA 304286D A CA304286D A CA 304286DA CA 304286 A CA304286 A CA 304286A
Authority
CA
Canada
Prior art keywords
sound
transmitting apparatus
vibration transmitting
vibration
transmitting
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
CA304286A
Other languages
French (fr)
Inventor
Wensley Earl
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
Publication date
Application granted granted Critical
Publication of CA304286A publication Critical patent/CA304286A/en
Expired legal-status Critical Current

Links

CA304286A Sound or vibration transmitting apparatus Expired CA304286A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA304286T

Publications (1)

Publication Number Publication Date
CA304286A true CA304286A (en) 1930-09-23

Family

ID=35257432

Family Applications (1)

Application Number Title Priority Date Filing Date
CA304286A Expired CA304286A (en) Sound or vibration transmitting apparatus

Country Status (1)

Country Link
CA (1) CA304286A (en)

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