CA245430A - Acoustic device - Google Patents

Acoustic device

Info

Publication number
CA245430A
CA245430A CA245430A CA245430DA CA245430A CA 245430 A CA245430 A CA 245430A CA 245430 A CA245430 A CA 245430A CA 245430D A CA245430D A CA 245430DA CA 245430 A CA245430 A CA 245430A
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
CA245430A
Other languages
French (fr)
Inventor
H. Ricker Norman
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.)
INTERNATIONAL WESTERN ELECTRIC Co Inc
Original Assignee
INTERNATIONAL WESTERN ELECTRIC Co Inc
Publication date
Application granted granted Critical
Publication of CA245430A publication Critical patent/CA245430A/en
Expired legal-status Critical Current

Links

CA245430A Acoustic device Expired CA245430A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA245430T

Publications (1)

Publication Number Publication Date
CA245430A true CA245430A (en) 1924-12-16

Family

ID=35152405

Family Applications (1)

Application Number Title Priority Date Filing Date
CA245430A Expired CA245430A (en) Acoustic device

Country Status (1)

Country Link
CA (1) CA245430A (en)

Similar Documents

Publication Publication Date Title
CA238566A (en) Acoustic device
CA245430A (en) Acoustic device
CA239994A (en) Sound device
CA243638A (en) Sound responsive device
CA240913A (en) Type spacing device
CA247148A (en) Acoustic device
CA248179A (en) Acoustic device
CA252388A (en) Acoustic device
CA244298A (en) Pole-setting device
CA250599A (en) Sound device
CA240705A (en) Sound producing device
CA241919A (en) Sound producing device
CA238659A (en) Sound producing device
CA257075A (en) Acoustic device
CA265567A (en) Sound device
CA265568A (en) Sound device
CA266154A (en) Sound device
CA218675A (en) Acoustic device
CA242636A (en) Microphone
CA238316A (en) Microphone
CA239644A (en) Vibrometer
CA240160A (en) Tone modifying device
CA237729A (en) Playing device
CA238592A (en) Sound receiving apparatus
CA241170A (en) Well cleaning device