CA193020A - Diaphragme de phonographe - Google Patents

Diaphragme de phonographe

Info

Publication number
CA193020A
CA193020A CA000193020A CA193020DA CA193020A CA 193020 A CA193020 A CA 193020A CA 000193020 A CA000193020 A CA 000193020A CA 193020D A CA193020D A CA 193020DA CA 193020 A CA193020 A CA 193020A
Authority
CA
Canada
Prior art keywords
diaphragm
talking machines
talking
machines
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
CA000193020A
Other languages
English (en)
Inventor
William Frederick Grupe
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of CA193020A publication Critical patent/CA193020A/fr
Expired legal-status Critical Current

Links

CA000193020A 1915-05-03 1915-05-03 Diaphragme de phonographe Expired CA193020A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA193020T 1915-05-03

Publications (1)

Publication Number Publication Date
CA193020A true CA193020A (fr) 1919-09-30

Family

ID=45312671

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000193020A Expired CA193020A (fr) 1915-05-03 1915-05-03 Diaphragme de phonographe

Country Status (1)

Country Link
CA (1) CA193020A (fr)

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