David E. Clarke

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Schaumburg, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Bridging bar attachment means for bi-elevational platform lift
- Patent number 4,394,888
- Issue date Jul 26, 1983
- Advance Lifts, Inc.
- David E. Clarke
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Collapsible safety guard for platform lift
- Patent number 4,091,906
- Issue date May 30, 1978
- Advance Lifts, Incorporated
- David E. Clarke
- B66 - HOISTING LIFTING HAULING