1977-11-29
1980-02-05
Witkowski, S. J.
58 91, G04B 3706, G04B 3900
Patent
active
041865529
ABSTRACT:
A case for a wristwatch, which comprises a shell fabricated from an outer thin metal plate, an annular metallic reinforcing member positioned within said shell, and an inner shell composed of an injection molded synthetic resin, said inner shell lying in intimate contact with an inner surface of said shell and having an inwardly facing annular recess into which said annular reinforcing member is fitted.
REFERENCES:
patent: 3006139 (1961-10-01), Hug et al.
patent: 3492810 (1970-02-01), Levrat
patent: 3789605 (1974-02-01), Kishida
Ishigaki Hisao
Nakajima Koichi
Tanaka Ryuzo
Citizen Watch Co. Ltd.
Witkowski S. J.
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