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Michael F. Ehman
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Franklin Park Township, Allegheny County, PA, US
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last 30 patents
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Patent Grant
Monolithic metal matrix composite
Patent number
5,746,267
Issue date
May 5, 1998
Aluminum Company of America
David I. Yun
B22 - CASTING POWDER METALLURGY
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Patent Grant
Fabrication of metal matrix composites by vacuum die casting
Patent number
5,259,436
Issue date
Nov 9, 1993
Aluminum Company of America
David I. Yun
B22 - CASTING POWDER METALLURGY