Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Subgroup
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 )

Introduced: September 1968

Title

Titles differ between systems:

IPC: Protecting arrangements against rupture or overwinding of the mainspring located in the barrel or attached to the barrel

CPC: 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 )

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 > Protecting arrangements against rupture or overwinding of the mainspring located in the barrel or attached to the barrel

CPC:

Driving mechanisms > with mainspring > Constructions for connecting the ends of the mainsprings with the barrel or the arbor > 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 )

Of 1 combined children, 0 exist in both systems.

1 codes are CPC-only extensions.

Child Classifications

Navigate with arrow keys, Enter to open