Alan C. Doughty

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Sand Springs, OK, US

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Patents Grantslast 30 patents

Information Patent Grant
Retaining keeper assembly for a hoisting device
- Patent number 7,293,763
- Issue date Nov 13, 2007
- The Crosby Group, Inc.
- Ernest E. Lutter
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Field adjustable bridge crane block
- Patent number 7,255,330
- Issue date Aug 14, 2007
- The Crosby Group, Inc.
- Ernest E. Lutter
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Retaining keeper assembly for a hoisting device
- Patent number 7,000,905
- Issue date Feb 21, 2006
- The Crosby Group, Inc.
- Ernest E. Lutter
- B66 - HOISTING LIFTING HAULING

Patents Applicationslast 30 patents

Information Patent Application
RETAINING KEEPER ASSEMBLY FOR A HOISTING DEVICE
- Publication number 20060119121
- Publication date Jun 8, 2006
- THE CROSBY GROUP, INC.
- Ernest E. Lutter
- B66 - HOISTING LIFTING HAULING
Information Patent Application
Field adjustable bridge crane block
- Publication number 20050274936
- Publication date Dec 15, 2005
- Ernest E. Lutter
- B66 - HOISTING LIFTING HAULING