DIFF Subgroup
E01B 7/16 Jump-over frogs
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Switches; Crossings > Frogs > Jump-over frogs
CPC:
Switches; Crossings (operating mechanisms B61L) > Frogs > Jump-over frogs
No child classifications to compare. This is a leaf node in both IPC and CPC.