DIFF Subgroup
E01B 9/58 Fastening the rail in the chair
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Fastening rails on sleepers, or the like > Indirect fastening of rails by using tie-plates or chairs; Fastening of rails on the tie-plates or in the chairs > Fastening the rail in the chair
CPC:
Fastening rails on sleepers, or the like (fastening rails to bridges E01D19/12) > Indirect fastening of rails by using tie-plates or chairs; Fastening of rails on the tie-plates or in the chairs > Fastening the rail in the chair
No child classifications to compare. This is a leaf node in both IPC and CPC.