IPC Subgroup
G04D 3/02 Lathes, with one or more supports; Burnishing machines, with one or more supports
Introduced: September 1968
Last revised: January 2006
Full Title
Watchmakers' or watch-repairers' machines or tools for working materials > Lathes, with one or more supports; Burnishing machines, with one or more supports
Classification Context
- Section:
- PHYSICS
- Class:
- HOROLOGY
- Subclass:
- APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
Related Keywords
BURNISHING machines for watchmakersLATHE(S) as watchmakers' equipment
Top Applicants
Top 10 applicants by patent filingsfor class G04, 2013–2023, worldwide · Source: EPO PATSTAT
- THE SWATCH GROUP RESEARCH AND DEVELOPMENT CH 1,570
- ETA SA MANUFACTURE HORLOGERE SUISSE CH 1,409
- CASIO COMPUTER COMPANY 1,172
- SEIKO EPSON CORPORATION 1,100
- SAMSUNG ELECTRONICS COMPANY KR 768
- NIVAROX-FAR CH 750
- MONTRES BREGUET CH 707
- APPLE US 706
- SEIKO EPSON CORPORATION JP 648
- CITIZEN WATCH COMPANY 578