Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
IPC Subgroup
G04D 7/1

for hairsprings

Introduced: September 1968

Last revised: January 2006

Full Title

Measuring, counting, calibrating, testing, or regulating apparatus > for hairsprings

Classification Context

Section:
PHYSICS
Class:
HOROLOGY
Subclass:
APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES