Horology: time measuring systems or devices – Chronological – With mechanical or electromechanical driven display
Patent
1987-04-22
1988-04-12
Roskoski, Bernard
Horology: time measuring systems or devices
Chronological
With mechanical or electromechanical driven display
368221, 368233, G04B 1920
Patent
active
047379413
ABSTRACT:
A wrist watch with hour and minute hands in the form of rotatable circular films, having an electrostatic shielding device which grounds a glass of the watch through a back cover of the watch, to eliminate static electricity produced in the glass. Also, because of the use of thin rotatable circular films for the minute and hour hands, the thickness of the watch can be considerably reduced.
REFERENCES:
patent: 4362397 (1982-12-01), Klingenberg
patent: 4407586 (1983-10-01), Musy
patent: 4459032 (1984-07-01), Musy
Kamiyama Yasuo
Mafune Masao
Citizen Watch Co. Ltd.
Roskoski Bernard
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