Bowman; Harold M.

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Cleveland, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Split-ring manhole cover support
- Patent number 5,184,912
- Issue date Feb 9, 1993
- Bowman; Harold M.
- Harold M. Bowman
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Stiffening flanges for deformation resistance of manhole cover support
- Patent number 5,150,984
- Issue date Sep 29, 1992
- Bowman; Harold M.
- Harold M. Bowman
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Ingot mold and method
- Patent number 4,416,440
- Issue date Nov 22, 1983
- Bowman; Harold M.
- Harold M. Bowman
- B22 - CASTING POWDER METALLURGY

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