Horology: time measuring systems or devices – Chronological – With simultaneous time indicating means
Patent
1991-06-06
1991-12-31
Miska, Vit W.
Horology: time measuring systems or devices
Chronological
With simultaneous time indicating means
368250, 368254, G04B 2302, G04C 2116
Patent
active
050777076
ABSTRACT:
A circular plate used in a time setting device has a through-hole, a plurality of arched protrusions extending downward from the bottom of the same and a pair of arched projections extending upward from the periphery of the through-hole. Each arched protrusion has a first edge spaced parallelly apart from the bottom of the circular plate and a pair of second edges which converge to the free ends of the first edge.
REFERENCES:
patent: 3708973 (1973-01-01), Funaki
patent: 4069658 (1978-01-01), Ito
patent: 4371267 (1983-02-01), Ogihara et al.
patent: 4376994 (1983-03-01), Ogihara et al.
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