CA314684A - Acoustic device - Google Patents

Acoustic device

Info

Publication number
CA314684A
CA314684A CA314684A CA314684DA CA314684A CA 314684 A CA314684 A CA 314684A CA 314684 A CA314684 A CA 314684A CA 314684D A CA314684D A CA 314684DA CA 314684 A CA314684 A CA 314684A
Authority
CA
Canada
Prior art keywords
acoustic device
acoustic
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
CA314684A
Other languages
French (fr)
Inventor
Hutchinson Smythe Edwin
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 CA314684A publication Critical patent/CA314684A/en
Expired legal-status Critical Current

Links

CA314684A Acoustic device Expired CA314684A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA314684T

Publications (1)

Publication Number Publication Date
CA314684A true CA314684A (en) 1931-08-25

Family

ID=35274012

Family Applications (1)

Application Number Title Priority Date Filing Date
CA314684A Expired CA314684A (en) Acoustic device

Country Status (1)

Country Link
CA (1) CA314684A (en)

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