G04Level 2

HOROLOGY

GET/api/v1/systems/patent_cpc/nodes/G04

Official DownloadPublic Domain

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G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES

G04CELECTROMECHANICAL CLOCKS OR WATCHES

G04DAPPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES

G04FTIME-INTERVAL MEASURING

G04GELECTRONIC TIME-PIECES

G04RRADIO-CONTROLLED TIME-PIECES

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