DIFF Subgroup
E21D 15/06 with parts joined by a lock, with or without slight axial adjustability
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Props; Chocks > Non-telescopic props > with parts joined by a lock, with or without slight axial adjustability
CPC:
Props (in the building art E04G25/00); Chocks > Non-telescopic props > with parts joined by a lock, with or without slight axial adjustability
IPC and CPC are identically structured here. All 3 subcodes exist in both systems.
Child Classifications
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