Lembit Vaerk

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Cedar Rapids, IA, US

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Patents Grantslast 30 patents

Information Patent Grant
Crane boom having variable angle offset capability
- Patent number 4,653,655
- Issue date Mar 31, 1987
- Harnischfeger Corporation
- Ram N. Rathi
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Telescoping crane boom
- Patent number 4,396,126
- Issue date Aug 2, 1983
- Harnischfeger Corporation
- David Moravec
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
High-strength light-weight boom section for telescopic crane boom
- Patent number 4,337,601
- Issue date Jul 6, 1982
- Harnischfeger Corporation
- Lembit Vaerk
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Boom section for telescopic crane boom
- Patent number 4,112,649
- Issue date Sep 12, 1978
- Harnischfeger Corporation
- Robert A. Fritsch
- B66 - HOISTING LIFTING HAULING