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 (159) uncoupling devices (166) rotating horizontal shafts

Hierarchy/Derived subclasses

213 / 75r	-> 77	-> 100r	-> 104	-> 109	-> 159	-> 166	-> 167
							-> 168
							-> 169
							-> 170

uspto searches

Patent Apps in 213/166

Granted Patents in 213/166

Use the links above or do an advanced search in ppubs for:
(213/166.ccls. or 213/167.ccls. or 213/168.ccls. or 213/169.ccls. or 213/170.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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