Patent
1974-05-17
1976-02-24
Miller, Jr., George H.
G04B 3708
Patent
active
039396460
ABSTRACT:
A water-tight watch case having an inorganic glass crystal to which a layer of transparent or semi-transparent water-absorptive material is applied to a central region of the inner surface thereof to leave a bare peripheral region at which the crystal is hermetically sealed to the case.
REFERENCES:
patent: 3052083 (1962-09-01), Piquerez
patent: 3261159 (1966-07-01), Simon et al.
Kabushiki Kaisha Suwa Seikosha
Miller Jr. George H.
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