Patent classifications
G
PHYSICS
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G04
HOROLOGY
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G04R
RADIO-CONTROLLED TIME-PIECES
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20/00
Setting the time according to the time information carried or implied by the radio signal
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G04R20/08
the radio signal being broadcast from a long-wave call sign, e.g. DCF77, JJY40, JJY60, MSF60 or WWVB
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G04R20/12
Decoding time data; Circuits therefor
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