FR810735A - Improvements to clocks, pendulums and electric alarm clocks - Google Patents

Improvements to clocks, pendulums and electric alarm clocks

Info

Publication number
FR810735A
FR810735A FR810735DA FR810735A FR 810735 A FR810735 A FR 810735A FR 810735D A FR810735D A FR 810735DA FR 810735 A FR810735 A FR 810735A
Authority
FR
France
Prior art keywords
clocks
pendulums
electric alarm
alarm clocks
electric
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.)
D HORLOGERIE ET D APP ELECTR C
Original Assignee
D HORLOGERIE ET D APP ELECTR C
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 D HORLOGERIE ET D APP ELECTR C filed Critical D HORLOGERIE ET D APP ELECTR C
Application granted granted Critical
Publication of FR810735A publication Critical patent/FR810735A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C15/00—Clocks driven by synchronous motors
    • G04C15/0054—Clocks driven by synchronous motors with power-reserve

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR810735D 1935-12-12 1935-12-12 Improvements to clocks, pendulums and electric alarm clocks Expired FR810735A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR810735T 1935-12-12

Publications (1)

Publication Number Publication Date
FR810735A true FR810735A (en) 1937-03-27

Family

ID=9257318

Family Applications (1)

Application Number Title Priority Date Filing Date
FR810735D Expired FR810735A (en) 1935-12-12 1935-12-12 Improvements to clocks, pendulums and electric alarm clocks

Country Status (1)

Country Link
FR (1) FR810735A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2637968A (en) * 1947-05-17 1953-05-12 Sangamo Electric Co Synchronous motor carryover clock

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2637968A (en) * 1947-05-17 1953-05-12 Sangamo Electric Co Synchronous motor carryover clock

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