DIFF Subgroup
E01B 7/14 with movable parts
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Switches; Crossings > Frogs > with movable parts
CPC:
Switches; Crossings (operating mechanisms B61L) > Frogs > with movable parts
No child classifications to compare. This is a leaf node in both IPC and CPC.