FR853847A - Perfectionnements aux appareils enregistreurs - Google Patents

Perfectionnements aux appareils enregistreurs

Info

Publication number
FR853847A
FR853847A FR853847DA FR853847A FR 853847 A FR853847 A FR 853847A FR 853847D A FR853847D A FR 853847DA FR 853847 A FR853847 A FR 853847A
Authority
FR
France
Prior art keywords
recording devices
recording
devices
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
English (en)
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.)
APP DE CONTROLE SOC GEN DES
Original Assignee
APP DE CONTROLE SOC GEN DES
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 APP DE CONTROLE SOC GEN DES filed Critical APP DE CONTROLE SOC GEN DES
Application granted granted Critical
Publication of FR853847A publication Critical patent/FR853847A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D18/00—Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR853847D 1938-11-17 1938-11-17 Perfectionnements aux appareils enregistreurs Expired FR853847A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR853847T 1938-11-17

Publications (1)

Publication Number Publication Date
FR853847A true FR853847A (fr) 1940-03-29

Family

ID=9327292

Family Applications (1)

Application Number Title Priority Date Filing Date
FR853847D Expired FR853847A (fr) 1938-11-17 1938-11-17 Perfectionnements aux appareils enregistreurs

Country Status (1)

Country Link
FR (1) FR853847A (fr)

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