FR804945A - Device for measuring predetermined time periods - Google Patents

Device for measuring predetermined time periods

Info

Publication number
FR804945A
FR804945A FR804945DA FR804945A FR 804945 A FR804945 A FR 804945A FR 804945D A FR804945D A FR 804945DA FR 804945 A FR804945 A FR 804945A
Authority
FR
France
Prior art keywords
predetermined time
time periods
measuring predetermined
measuring
periods
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
Henry Marie Emile Alban
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 FR804945A publication Critical patent/FR804945A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F1/00—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals without driving mechanisms, e.g. egg timers
    • G04F1/04—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals without driving mechanisms, e.g. egg timers by movement or acceleration due to gravity
    • G04F1/06—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals without driving mechanisms, e.g. egg timers by movement or acceleration due to gravity by flowing-away of a prefixed quantity of fine-granular or liquid materials, e.g. sand-glass, water-clock

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR804945D 1936-04-15 1936-04-15 Device for measuring predetermined time periods Expired FR804945A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR804945T 1936-04-15

Publications (1)

Publication Number Publication Date
FR804945A true FR804945A (en) 1936-11-05

Family

ID=9251012

Family Applications (1)

Application Number Title Priority Date Filing Date
FR804945D Expired FR804945A (en) 1936-04-15 1936-04-15 Device for measuring predetermined time periods

Country Status (1)

Country Link
FR (1) FR804945A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD244835S (en) 1976-02-09 1977-06-28 Sheth Harshadrai D Electronic hour glass clock

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD244835S (en) 1976-02-09 1977-06-28 Sheth Harshadrai D Electronic hour glass clock

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