USPC Class Details

Description: 213 railway draft appliances / 213 railway draft appliances/(75r) couplings (77) counterpart (100r) interengaging hooks and knuckles (104) horizontally swinging (109) janney type (115) knuckle openers (125) lock-operated (126) vertically sliding locks (128) vertically swinging levers

Hierarchy/Derived subclasses

213 / 75r

-> 77

-> 100r

-> 104

-> 109

-> 115

-> 125

-> 126

-> 128

uspto searches

Patent Apps in 213/128

Granted Patents in 213/128

Use the links above or do an advanced search in ppubs for:
(213/128.ccls.)

This will show what classes derive from the input. Ex: entering 43/42.24 shows the derived classes and the search that can be used to find patents or patent applications in those subclasses.

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