CA493489A - Acoustic devices - Google Patents

Acoustic devices

Info

Publication number
CA493489A
CA493489A CA493489A CA493489DA CA493489A CA 493489 A CA493489 A CA 493489A CA 493489 A CA493489 A CA 493489A CA 493489D A CA493489D A CA 493489DA CA 493489 A CA493489 A CA 493489A
Authority
CA
Canada
Prior art keywords
acoustic devices
acoustic
devices
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
CA493489A
Other languages
French (fr)
Inventor
S. Peterson Edward
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.)
Automatic Electric Laboratories Inc
Original Assignee
Automatic Electric Laboratories Inc
Publication date
Application granted granted Critical
Publication of CA493489A publication Critical patent/CA493489A/en
Expired legal-status Critical Current

Links

CA493489A Acoustic devices Expired CA493489A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA493489T

Publications (1)

Publication Number Publication Date
CA493489A true CA493489A (en) 1953-06-09

Family

ID=35638878

Family Applications (1)

Application Number Title Priority Date Filing Date
CA493489A Expired CA493489A (en) Acoustic devices

Country Status (1)

Country Link
CA (1) CA493489A (en)

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