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On-load tap changer
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Patent number 10,102,990
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Issue date Oct 16, 2018
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MASCHINENFABRIK REINHAUSEN GMBH
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Silke Wrede
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H01 - BASIC ELECTRIC ELEMENTS
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Oil-filter assembly
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Patent number 6,299,762
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Issue date Oct 9, 2001
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MASCHINENFABRIK REINHAUSEN GMBH
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Arpad Szabo
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H01 - BASIC ELECTRIC ELEMENTS
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Dehydrating breather apparatus
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Patent number 5,902,381
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Issue date May 11, 1999
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General Signal Corporation
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Thomas M. Golner
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Transformer leak alarm
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Patent number 5,691,706
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Issue date Nov 25, 1997
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Filmax, Inc.
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David McMahan Butler
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Liquid treatment system
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Patent number 5,167,804
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Issue date Dec 1, 1992
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Tigg Corporation
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Donald D. Tiggelbeck
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Electrical inductive apparatus
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Patent number 4,124,834
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Issue date Nov 7, 1978
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Westinghouse Electric Corp.
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Edward J. Walsh
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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3913959
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Patent number 3,913,959
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Issue date Oct 21, 1975
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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2405853
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Patent number 2,405,853
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Issue date Aug 13, 1946
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H01 - BASIC ELECTRIC ELEMENTS
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2294712
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Patent number 2,294,712
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Issue date Sep 1, 1942
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H01 - BASIC ELECTRIC ELEMENTS
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1769562
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Patent number 1,769,562
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Issue date Jul 1, 1930
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H01 - BASIC ELECTRIC ELEMENTS
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1737663
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Patent number 1,737,663
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Issue date Dec 3, 1929
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H01 - BASIC ELECTRIC ELEMENTS
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1732895
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Patent number 1,732,895
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Issue date Oct 22, 1929
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H01 - BASIC ELECTRIC ELEMENTS
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1573179
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Patent number 1,573,179
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Issue date Feb 16, 1926
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H01 - BASIC ELECTRIC ELEMENTS
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1563831
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Patent number 1,563,831
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Issue date Dec 1, 1925
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H01 - BASIC ELECTRIC ELEMENTS
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1562738
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Patent number 1,562,738
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Issue date Nov 24, 1925
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H01 - BASIC ELECTRIC ELEMENTS
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1552417
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Patent number 1,552,417
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Issue date Sep 8, 1925
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H01 - BASIC ELECTRIC ELEMENTS
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1546433
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Patent number 1,546,433
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Issue date Jul 21, 1925
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H01 - BASIC ELECTRIC ELEMENTS
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1540596
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Patent number 1,540,596
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Issue date Jun 2, 1925
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H01 - BASIC ELECTRIC ELEMENTS
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1540546
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Patent number 1,540,546
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Issue date Jun 2, 1925
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H01 - BASIC ELECTRIC ELEMENTS
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1534707
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Patent number 1,534,707
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Issue date Apr 21, 1925
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H01 - BASIC ELECTRIC ELEMENTS
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1512083
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Patent number 1,512,083
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Issue date Oct 21, 1924
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H01 - BASIC ELECTRIC ELEMENTS
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1498507
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Patent number 1,498,507
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Issue date Jun 17, 1924
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H01 - BASIC ELECTRIC ELEMENTS
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1483839
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Patent number 1,483,839
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Issue date Feb 12, 1924
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H01 - BASIC ELECTRIC ELEMENTS