DIFF Subgroup
E21D 15/36 by a tiltable collar surrounding one or both parts
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Props; Chocks > Telescopic props > with parts held relatively to each other by friction or gripping, e.g. using wedges > by a tiltable collar surrounding one or both parts
CPC:
Props (in the building art E04G25/00); Chocks > Telescopic props (general means for fixing telescopic parts together ) > with parts held relatively to each other by friction or gripping > by a tiltable collar surrounding one or both parts
No child classifications to compare. This is a leaf node in both IPC and CPC.