FR882889A - Improvements made to timing devices - Google Patents

Improvements made to timing devices

Info

Publication number
FR882889A
FR882889A FR882889DA FR882889A FR 882889 A FR882889 A FR 882889A FR 882889D A FR882889D A FR 882889DA FR 882889 A FR882889 A FR 882889A
Authority
FR
France
Prior art keywords
improvements made
timing devices
timing
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
French (fr)
Inventor
Johan Marie Louwerse
F C M Hegener
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 filed Critical
Application granted granted Critical
Publication of FR882889A publication Critical patent/FR882889A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F13/00—Apparatus for measuring unknown time intervals by means not provided for in groups G04F5/00 - G04F10/00
    • G04F13/02—Apparatus for measuring unknown time intervals by means not provided for in groups G04F5/00 - G04F10/00 using optical means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR882889D 1942-06-04 1942-06-04 Improvements made to timing devices Expired FR882889A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR882889T 1942-06-04

Publications (1)

Publication Number Publication Date
FR882889A true FR882889A (en) 1943-06-17

Family

ID=9374274

Family Applications (1)

Application Number Title Priority Date Filing Date
FR882889D Expired FR882889A (en) 1942-06-04 1942-06-04 Improvements made to timing devices

Country Status (1)

Country Link
FR (1) FR882889A (en)

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