FR1189912A - Improvements to electric wristwatches - Google Patents

Improvements to electric wristwatches

Info

Publication number
FR1189912A
FR1189912A FR1189912DA FR1189912A FR 1189912 A FR1189912 A FR 1189912A FR 1189912D A FR1189912D A FR 1189912DA FR 1189912 A FR1189912 A FR 1189912A
Authority
FR
France
Prior art keywords
wristwatches
electric
electric wristwatches
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.)
Hamilton Watch Co
Original Assignee
Hamilton Watch Co
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 Hamilton Watch Co filed Critical Hamilton Watch Co
Application granted granted Critical
Publication of FR1189912A publication Critical patent/FR1189912A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/04—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance
    • G04C3/06—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance using electromagnetic coupling between electric power source and balance

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
FR1189912D 1956-04-17 1957-04-17 Improvements to electric wristwatches Expired FR1189912A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1189912XA 1956-04-17 1956-04-17

Publications (1)

Publication Number Publication Date
FR1189912A true FR1189912A (en) 1959-10-08

Family

ID=22381989

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1189912D Expired FR1189912A (en) 1956-04-17 1957-04-17 Improvements to electric wristwatches

Country Status (1)

Country Link
FR (1) FR1189912A (en)

Similar Documents

Publication Publication Date Title
FR1246135A (en) Improvements to electric batteries
FR1160320A (en) Improvements to electrical switches
FR1189130A (en) Improvements to electrolysers
FR1143821A (en) Improvements to electric capacitors
FR1173635A (en) Improvements to electrical switches
FR1174789A (en) Improvements to servo-steering
FR1145861A (en) Improvements to brushes
FR1158578A (en) Improvements to waterproof stators
FR1158869A (en) Improvements to electrical contactors
FR1199374A (en) Improvements to functional transformers
FR70689E (en) Improvements to shielding
FR1165618A (en) Improvements to stato-reactors
FR1141838A (en) Improvements to electrical machines
FR1177220A (en) Improvements to electrical accessories
FR1189912A (en) Improvements to electric wristwatches
FR1178671A (en) Improvements to electric cables
FR70397E (en) Improvements to retinographs
FR1163133A (en) Improvements to elevator-conveyors
FR1175124A (en) Improvements to starters
FR1160530A (en) Improvements to electric heaters
FR1172522A (en) Improvements to electric clocks
FR1160378A (en) Improvements to shredders
FR1148515A (en) Improvements to digital electric calculators
FR1174308A (en) Improvements to electrical controls
FR1159857A (en) Improvements to gimbals