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Magnetic materials
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Patent number 5,227,247
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Issue date Jul 13, 1993
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SPS Technologies, Inc.
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Yakov Bogatin
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B22 - CASTING POWDER METALLURGY
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Magnetic materials
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Patent number 5,180,445
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Issue date Jan 19, 1993
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SPS Technologies, Inc.
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Yakov Bogatin
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B22 - CASTING POWDER METALLURGY
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Magnetic materials
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Patent number 5,122,203
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Issue date Jun 16, 1992
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SPS Technologies, Inc.
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Yakov Bogatin
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B22 - CASTING POWDER METALLURGY
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