DIFF Subgroup
E04G 25/08 with parts held relatively to each other by friction or gripping
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Shores or struts; Chocks > telescopic > with parts held relatively to each other by friction or gripping
CPC:
Shores or struts (specially designed for use in mines E21D15/00 ); Chocks > telescopic > with parts held relatively to each other by friction or gripping
No child classifications to compare. This is a leaf node in both IPC and CPC.