USPC Class Details

Description: 213 railway draft appliances / 213 railway draft appliances/(75r) couplings () link or bar type (188) pin and open link (189) automatic pin moving (190) swing pin (191) to coupling position

Hierarchy/Derived subclasses

213 / 75r

-> 188

-> 189

-> 190

-> 191

uspto searches

Patent Apps in 213/191

Granted Patents in 213/191

Use the links above or do an advanced search in ppubs for:
(213/191.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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