DIFF Subgroup
B25D 9/18 involving a piston-type slide valve
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Portable percussive tools with fluid-pressure drive, e.g. having several percussive tool bits operated simultaneously > Control devices for the reciprocating piston > Valve arrangements therefor > involving a piston-type slide valve
CPC:
Portable percussive tools with fluid-pressure drive, , e.g. having several percussive tool bits operated simultaneously > Control devices for the reciprocating piston > Valve arrangements therefor > involving a piston-type slide valve
No child classifications to compare. This is a leaf node in both IPC and CPC.