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FR691307A - Improvements in speed differentiation processes and in devices operating under the action of a speed difference, applicable, in particular, to phonographs and similar mechanisms - Google Patents

Improvements in speed differentiation processes and in devices operating under the action of a speed difference, applicable, in particular, to phonographs and similar mechanisms

Info

Publication number
FR691307A
FR691307A FR691307DA FR691307A FR 691307 A FR691307 A FR 691307A FR 691307D A FR691307D A FR 691307DA FR 691307 A FR691307 A FR 691307A
Authority
FR
France
Prior art keywords
speed
phonographs
applicable
action
operating under
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
Other languages
French (fr)
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.)
Technidyne Corp
Original Assignee
Technidyne Corp
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 Technidyne Corp filed Critical Technidyne Corp
Application granted granted Critical
Publication of FR691307A publication Critical patent/FR691307A/en
Expired legal-status Critical Current

Links

FR691307D 1929-09-18 1930-03-06 Improvements in speed differentiation processes and in devices operating under the action of a speed difference, applicable, in particular, to phonographs and similar mechanisms Expired FR691307A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US691307XA 1929-09-18 1929-09-18

Publications (1)

Publication Number Publication Date
FR691307A true FR691307A (en) 1930-10-20

Family

ID=22086942

Family Applications (1)

Application Number Title Priority Date Filing Date
FR691307D Expired FR691307A (en) 1929-09-18 1930-03-06 Improvements in speed differentiation processes and in devices operating under the action of a speed difference, applicable, in particular, to phonographs and similar mechanisms

Country Status (1)

Country Link
FR (1) FR691307A (en)

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