3 patents
Design
Railroad car coupler assembly knuckle pin
25 Jan 22
Stephen Hankinson
Filed: 12 Aug 21
Design
Railroad car coupler assembly knuckle pin
14 Sep 21
Stephen Hankinson
Filed: 20 Jun 18
Design
Railroad car combined vented hatch cover protector and gasket
21 Dec 20
John D. Anderson, Walter J. Peach
Filed: 25 Apr 18
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