Donald B. Craig

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Grand Island, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Desulfurization agent
- Patent number 5,149,364
- Issue date Sep 22, 1992
- Elkem Metals Company
- Donald B. Craig
- C21 - METALLURGY OF IRON
Information Patent Grant
Desulfurization agent
- Patent number 5,078,784
- Issue date Jan 7, 1992
- Elkem Metals Company
- Donald B. Craig
- C21 - METALLURGY OF IRON
Information Patent Grant
Desulfurization agent
- Patent number 4,941,914
- Issue date Jul 17, 1990
- Elkem Metals Company
- Donald B. Craig
- C21 - METALLURGY OF IRON