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3689199
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Patent number 3,689,199
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Issue date Sep 5, 1972
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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2955751
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Patent number 2,955,751
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Issue date Oct 11, 1960
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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2955750
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Patent number 2,955,750
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Issue date Oct 11, 1960
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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2572711
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Patent number 2,572,711
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Issue date Oct 23, 1951
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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2454600
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Patent number 2,454,600
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Issue date Nov 23, 1948
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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2151402
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Patent number 2,151,402
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Issue date Mar 21, 1939
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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1479856
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Patent number 1,479,856
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Issue date Jan 8, 1924
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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1370516
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Patent number 1,370,516
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Issue date Mar 8, 1921
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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1331111
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Patent number 1,331,111
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Issue date Feb 17, 1920
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...