CA733221A - Sound-producing system and apparatus - Google Patents

Sound-producing system and apparatus

Info

Publication number
CA733221A
CA733221A CA733221A CA733221DA CA733221A CA 733221 A CA733221 A CA 733221A CA 733221 A CA733221 A CA 733221A CA 733221D A CA733221D A CA 733221DA CA 733221 A CA733221 A CA 733221A
Authority
CA
Canada
Prior art keywords
sound
producing system
producing
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
CA733221A
Inventor
Hayward Gary
E. Edgerton Harold
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.)
PerkinElmer Inc
Original Assignee
Edgerton Germeshausen and Grier Inc
Publication date
Application granted granted Critical
Publication of CA733221A publication Critical patent/CA733221A/en
Expired legal-status Critical Current

Links

CA733221A Sound-producing system and apparatus Expired CA733221A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA733221T

Publications (1)

Publication Number Publication Date
CA733221A true CA733221A (en) 1966-04-26

Family

ID=36131387

Family Applications (1)

Application Number Title Priority Date Filing Date
CA733221A Expired CA733221A (en) Sound-producing system and apparatus

Country Status (1)

Country Link
CA (1) CA733221A (en)

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