CA492987A - Methode d'enregistrement electrique - Google Patents

Methode d'enregistrement electrique

Info

Publication number
CA492987A
CA492987A CA492987A CA492987DA CA492987A CA 492987 A CA492987 A CA 492987A CA 492987 A CA492987 A CA 492987A CA 492987D A CA492987D A CA 492987DA CA 492987 A CA492987 A CA 492987A
Authority
CA
Canada
Prior art keywords
electrical recording
recording
electrical
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
CA492987A
Other languages
English (en)
Inventor
D. White Desmond
R. Osborn Frank
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.)
Dufay Ltd
Original Assignee
Dufay Ltd
Publication date
Application granted granted Critical
Publication of CA492987A publication Critical patent/CA492987A/fr
Expired legal-status Critical Current

Links

CA492987A Methode d'enregistrement electrique Expired CA492987A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA492987T

Publications (1)

Publication Number Publication Date
CA492987A true CA492987A (fr) 1953-05-19

Family

ID=35638370

Family Applications (1)

Application Number Title Priority Date Filing Date
CA492987A Expired CA492987A (fr) Methode d'enregistrement electrique

Country Status (1)

Country Link
CA (1) CA492987A (fr)

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