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Robert P. Pflum

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  • Indianapolis, IN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Check valve for engine cooling system
    • Patent number 4,872,476
    • Issue date Oct 10, 1989
    • Caltherm Corporation
    • Robert P. Pflum
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES