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Resistance spot welding apparatus
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Patent number 10,464,160
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Issue date Nov 5, 2019
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Siemens Aktiengesellschaft
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Jan Brückner
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Feedwater debris trap
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Patent number 8,215,379
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Issue date Jul 10, 2012
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Babcock & Wilcox Canada Ltd.
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Richard G. Klarner
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F22 - STEAM GENERATION
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Flash steam generator
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Patent number 7,995,905
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Issue date Aug 9, 2011
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Illinois Tool Works Inc.
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Alan Varacins
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F22 - STEAM GENERATION
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3580227
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Patent number 3,580,227
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Issue date May 25, 1971
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F22 - STEAM GENERATION
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3479992
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Patent number 3,479,992
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Issue date Nov 25, 1969
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F22 - STEAM GENERATION
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3431082
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Patent number 3,431,082
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Issue date Mar 4, 1969
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F28 - HEAT EXCHANGE IN GENERAL
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3387592
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Patent number 3,387,592
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Issue date Jun 11, 1968
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F28 - HEAT EXCHANGE IN GENERAL
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3302701
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Patent number 3,302,701
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Issue date Feb 7, 1967
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F28 - HEAT EXCHANGE IN GENERAL
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3133528
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Patent number 3,133,528
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Issue date May 19, 1964
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F28 - HEAT EXCHANGE IN GENERAL
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2249587
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Patent number 2,249,587
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Issue date Jul 15, 1941
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F22 - STEAM GENERATION
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1887130
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Patent number 1,887,130
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Issue date Nov 8, 1932
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F22 - STEAM GENERATION
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1858665
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Patent number 1,858,665
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Issue date May 17, 1932
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F22 - STEAM GENERATION
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1672617
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Patent number 1,672,617
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Issue date Jun 5, 1928
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F28 - HEAT EXCHANGE IN GENERAL
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1622736
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Patent number 1,622,736
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Issue date Mar 29, 1927
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F22 - STEAM GENERATION
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1606739
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Patent number 1,606,739
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Issue date Nov 9, 1926
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F28 - HEAT EXCHANGE IN GENERAL
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1590812
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Patent number 1,590,812
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Issue date Jun 29, 1926
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F22 - STEAM GENERATION