Harold W. Spielman

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Abbotsford, CA

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Patents Grantslast 30 patents

Information Patent Grant
Dragline bucket transporter and method of use
- Patent number 6,071,068
- Issue date Jun 6, 2000
- Towhaul Corporation
- Francis V. Smith
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Dragline bucket transporter and method of use
- Patent number 5,944,471
- Issue date Aug 31, 1999
- Towhaul Corporation
- Francis V. Smith
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING