Raymond H. Witt

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Farmington, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Mold for sand casting varying thickness articles
- Patent number 4,742,863
- Issue date May 10, 1988
- Raymond H. Witt
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Method for sand casting varying thickness articles
- Patent number 4,674,553
- Issue date Jun 23, 1987
- Raymond H. Witt
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Green sand mold filling system
- Patent number 4,620,584
- Issue date Nov 4, 1986
- Raymond H. Witt
- B22 - CASTING POWDER METALLURGY