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Daniel H. Siegert

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  • Pasadena, MD, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Self-lubricating gear-type spindle coupling
    • Patent number 4,137,999
    • Issue date Feb 6, 1979
    • Koppers Company, Inc.
    • Daniel H. Siegert
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...