CA370636A - Methode a duplicata d'empreintes phonographiques - Google Patents

Methode a duplicata d'empreintes phonographiques

Info

Publication number
CA370636A
CA370636A CA370636A CA370636DA CA370636A CA 370636 A CA370636 A CA 370636A CA 370636 A CA370636 A CA 370636A CA 370636D A CA370636D A CA 370636DA CA 370636 A CA370636 A CA 370636A
Authority
CA
Canada
Prior art keywords
phonograph record
duplicating method
record duplicating
phonograph
record
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
CA370636A
Other languages
English (en)
Inventor
Eugene Pollard Charles
Gaddis Russell Alexander
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
Publication date
Application granted granted Critical
Publication of CA370636A publication Critical patent/CA370636A/fr
Expired legal-status Critical Current

Links

CA370636A Methode a duplicata d'empreintes phonographiques Expired CA370636A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA370636T

Publications (1)

Publication Number Publication Date
CA370636A true CA370636A (fr) 1937-12-21

Family

ID=35371702

Family Applications (1)

Application Number Title Priority Date Filing Date
CA370636A Expired CA370636A (fr) Methode a duplicata d'empreintes phonographiques

Country Status (1)

Country Link
CA (1) CA370636A (fr)

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