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Mechanically balanced tapered plug valve
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Patent number 4,519,414
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Issue date May 28, 1985
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Industrial de Valvulas, S.A. de C.V.
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Jose R. Anaya
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Tamperproof plug valve
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Patent number 4,014,512
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Issue date Mar 29, 1977
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A. Y. McDonald Mfg. Co.
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Douglas L. Cheever
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3799499
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Patent number 3,799,499
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Issue date Mar 26, 1974
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3788599
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Patent number 3,788,599
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Issue date Jan 29, 1974
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3782686
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Patent number 3,782,686
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Issue date Jan 1, 1974
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3459405
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Patent number 3,459,405
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Issue date Aug 5, 1969
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3333812
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Patent number 3,333,812
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Issue date Aug 1, 1967
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3229720
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Patent number 3,229,720
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Issue date Jan 18, 1966
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3228654
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Patent number 3,228,654
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Issue date Jan 11, 1966
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3195856
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Patent number 3,195,856
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Issue date Jul 20, 1965
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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2922617
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Patent number 2,922,617
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Issue date Jan 26, 1960
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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2738799
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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2678801
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Patent number 2,678,801
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Issue date May 18, 1954
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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2664263
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Patent number 2,664,263
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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2628058
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Patent number 2,628,058
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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2586453
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Patent number 2,586,453
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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2256416
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Patent number 2,256,416
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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1892835
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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1843251
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Patent number 1,843,251
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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1697330
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Patent number 1,697,330
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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1687554
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Issue date Oct 16, 1928
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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1564846
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Patent number 1,564,846
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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1561867
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Patent number 1,561,867
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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1439744
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Issue date Dec 26, 1922
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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1418118
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Patent number 1,418,118
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Issue date May 30, 1922
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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1416173
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Patent number 1,416,173
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Issue date May 16, 1922
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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1398329
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Patent number 1,398,329
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Issue date Nov 29, 1921
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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1389384
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Patent number 1,389,384
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Issue date Aug 30, 1921
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...