CA171993A - Sound transmitting device - Google Patents

Sound transmitting device

Info

Publication number
CA171993A
CA171993A CA000171993A CA171993DA CA171993A CA 171993 A CA171993 A CA 171993A CA 000171993 A CA000171993 A CA 000171993A CA 171993D A CA171993D A CA 171993DA CA 171993 A CA171993 A CA 171993A
Authority
CA
Canada
Prior art keywords
transmitting device
sound transmitting
sound
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
CA000171993A
Other languages
French (fr)
Inventor
Paul J. Hackett
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.)
UNIVERSAL HIGH POWER TELEPHONE Co
Original Assignee
UNIVERSAL HIGH POWER TELEPHONE Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by UNIVERSAL HIGH POWER TELEPHONE Co filed Critical UNIVERSAL HIGH POWER TELEPHONE Co
Application granted granted Critical
Publication of CA171993A publication Critical patent/CA171993A/en
Expired legal-status Critical Current

Links

CA000171993A 1915-03-18 1915-03-18 Sound transmitting device Expired CA171993A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA171993T 1915-03-18

Publications (1)

Publication Number Publication Date
CA171993A true CA171993A (en) 1916-09-19

Family

ID=45291649

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000171993A Expired CA171993A (en) 1915-03-18 1915-03-18 Sound transmitting device

Country Status (1)

Country Link
CA (1) CA171993A (en)

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