consisting of cranked axles and coupling rods

Patents Grantslast 30 patents

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    • Patent number 4,425,763
    • Issue date Jan 17, 1984
    • American Coal Enterprises, Inc.
    • Livio D. Porta
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    2322788

    • Patent number 2,322,788
    • Issue date Jun 29, 1943
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    2255902

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    2237728

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    2219081

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    2203975

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    2180316

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    2166976

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    2103978

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    • Issue date Dec 28, 1937
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    2072707

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    • Issue date Mar 2, 1937
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    2047458

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    • Issue date Jul 14, 1936
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    2025381

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    • Issue date Dec 24, 1935
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    1951126

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    • Issue date Mar 13, 1934
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    1936159

    • Patent number 1,936,159
    • Issue date Nov 21, 1933
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    1867246

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    • Issue date Jul 12, 1932
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    1804038

    • Patent number 1,804,038
    • Issue date May 5, 1931
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    1803987

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    1724991

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    1711220

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    • Issue date Apr 30, 1929
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    1662595

    • Patent number 1,662,595
    • Issue date Mar 13, 1928
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    1635813

    • Patent number 1,635,813
    • Issue date Jul 12, 1927
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    1544917

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    • Issue date Jul 7, 1925
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    1499713

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    1491121

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    1365655

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    • Issue date Jan 18, 1921
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    1328591

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    867835

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    840442

    • Patent number 840,442
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    597557

    • Patent number 597,557
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    546153

    • Patent number 546,153
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Patents Applicationslast 30 patents