Horology: time measuring systems or devices – Displays or display device details – Dial or hand
Patent
1979-01-30
1982-04-27
Miska, Vit W.
Horology: time measuring systems or devices
Displays or display device details
Dial or hand
29177, 204 6, G04B 1906, B23P 2300, B41C 308
Patent
active
043274285
ABSTRACT:
A dial plate or masking plate for a timepiece, having a pattern formed on a surface of the dial plate by embossing with a mold formed of a hard metal by an electroforming process.
REFERENCES:
patent: 1834763 (1931-12-01), Bonsieur
patent: 2282022 (1942-05-01), Bishop et al.
patent: 2327762 (1939-10-01), Bull
patent: 2865821 (1958-12-01), Janke et al.
patent: 3054175 (1962-09-01), Spreter
patent: 3535211 (1970-10-01), Frowde
patent: 3649474 (1972-03-01), Blakeslee et al.
patent: 3989603 (1976-11-01), Montavon
Metal Finishing Guidebook and Directory, 1976, Published by Metals and Plastics Publications, Inc., pp. 188-204, 264-285, 419-427, 461-468.
Enomoto Tadao
Koide Hiroshi
Citizen Watch Company Limited
Miska Vit W.
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