Thomas W. Griffiths

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Lexington, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Trolley pole raising and lowering apparatus
- Patent number 4,634,817
- Issue date Jan 6, 1987
- Harvey Hubbell Incorporated
- Thomas W. Griffiths
- B60 - VEHICLES IN GENERAL
Information Patent Grant
High speed trolley harp assembly
- Patent number 4,567,335
- Issue date Jan 28, 1986
- Harvey Hubbell Incorporated
- Thomas W. Griffiths
- B60 - VEHICLES IN GENERAL