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2859908
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2557596
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Patent number 2,557,596
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1921444
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Patent number 1,921,444
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1457799
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Patent number 1,457,799
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Patent number 1,076,220
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Patent number 1,032,222
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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950774
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Patent number 950,774
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648040
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Patent number 648,040
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414098
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Patent number 414,098
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404091
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Patent number 404,091
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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401753
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Patent number 401,753
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Patent number 349,191
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Patent number 348,025
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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344480
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Patent number 344,480
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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334354
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Patent number 334,354
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332386
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Patent number 332,386
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331193
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Patent number 331,193
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328424
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Patent number 328,424
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322768
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Patent number 322,768
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319481
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Patent number 319,481
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318892
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Patent number 318,892
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290693
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Patent number 290,693
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245354
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Patent number 245,354
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224762
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Patent number 224,762
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Issue date Feb 24, 1880
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...