the elements being discs

Patents Grantslast 30 patents

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    1756991

    • Patent number 1,756,991
    • Issue date May 6, 1930
    • F26 - DRYING
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    1718544

    • Patent number 1,718,544
    • Issue date Jun 25, 1929
    • F26 - DRYING
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    1718543

    • Patent number 1,718,543
    • Issue date Jun 25, 1929
    • F26 - DRYING
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    1714853

    • Patent number 1,714,853
    • Issue date May 28, 1929
    • F26 - DRYING