DIFF Subgroup
G04B 1/18 Constructions for connecting the ends of the mainsprings with the barrel or the arbor
Introduced: September 1968
Title
Titles differ between systems:
IPC: Constructions for connecting the ends of mainsprings with the barrel or the arbor
CPC: Constructions for connecting the ends of the mainsprings with the barrel or the arbor
Full Title
Full titles differ between systems:
IPC:
Driving mechanisms > with mainspring > Constructions for connecting the ends of mainsprings with the barrel or the arbor
CPC:
Driving mechanisms > with mainspring > Constructions for connecting the ends of the mainsprings with the barrel or the arbor
Of 2 combined children, 1 exist in both systems.
1 codes are CPC-only extensions.
1 shared codes have differing titles between IPC and CPC.
Child Classifications
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- G04B 1/20 Protecting arrangements against rupture or overwinding of the mainspring located in the barrel or attached to the barrel (in connection with keys or the like G04B3/06, G04B3/10; in connection with automatic winding devices G04B5/24 ) +1 CPC IPC+CPC Available in IPC and CPC