Horology: time measuring systems or devices – Plural time zones
Patent
1987-06-22
1989-04-11
Miska, Vit W.
Horology: time measuring systems or devices
Plural time zones
G04B 1922
Patent
active
048212482
ABSTRACT:
A world timepiece having means for controlling the time correction of the fundamental time that the fundamental time is interlocked to the time of a region having time difference when the correction amount is shorter than a time-differential unit time (thirty minutes or one hour), and is not interlocked when the correction amount is equal to the multiple of the time-differential unit time.
REFERENCES:
patent: 4274151 (1981-06-01), Kamiwaki
patent: 4316272 (1982-02-01), Naito
Adams Bruce L.
Miska Vit W.
Seiko Instruments Inc.
Wilks Van C.
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