1
Liu Xu, Douglas D Colby: Hook clamp unit. Delaware Capital Formation, Harness Dickey & Pierce, March 2, 2010: US07669840 (3 worldwide citation)

A hook unit for use with a clamp in a manufacturing environment. The hook unit includes a base and a sliding member arranged therein. A hook extends through the base and sliding member. The hook and sliding member form a barrier for the clamp.


2
Liu Xu, Colby Douglas D: Hook clamp unit. Capital Formation, July 26, 2006: EP1683606-A1 (1 worldwide citation)

A hook unit (10) for use with a clamp (22) in a manufacturing environment. The hook unit (10) includes a base (16) and a sliding member (20) arranged therein. A hook (12) extends through the base (16) and sliding member (20). The hook (12) and sliding member (20) form a barrier for the clamp (22).


3
Liu Xu, Douglas D Colby: Hook clamp unit. Delaware Capital Formation, Raggio & Dinnin PC, July 27, 2006: US20060163790-A1

A hook unit for use with a clamp in a manufacturing environment. The hook unit includes a base and a sliding member arranged therein. A hook extends through the base and sliding member. The hook and sliding member form a barrier for the clamp.