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-
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Box tube clamping system
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Patent number 6,755,590
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Issue date Jun 29, 2004
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MTR, Inc.
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Edwin J. Luetzow
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Solenoid system
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Patent number 6,597,558
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Issue date Jul 22, 2003
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MTR, Inc.
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Edwin J. Luetzow
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H01 - BASIC ELECTRIC ELEMENTS
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-
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Bi-stable battery switch
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Patent number 6,310,529
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Issue date Oct 30, 2001
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MTR, Inc.
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Edwin J. Luetzow
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H01 - BASIC ELECTRIC ELEMENTS
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76568681
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Serial number 76568681
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Registration number 3188459
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Filing date Dec 23, 2003
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MTR Corporation Limited
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36 - Insurance
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76394303 - WHERE PROBLEMS BECOME PRODUCTS
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Serial number 76394303
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Registration number 2690574
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Filing date Apr 12, 2002
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MTR, Inc.
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42 - Scientific and technological services and research and design relating thereto
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76223333
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Serial number 76223333
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Registration number 2868270
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Filing date Mar 12, 2001
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MTR Corporation Limited
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36 - Insurance
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76223332
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Serial number 76223332
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Filing date Mar 12, 2001
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MTR Corporation Limited
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36 - Insurance
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75094894 - MINNESOTA TECHNICAL RESEARCH
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Serial number 75094894
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Registration number 2117419
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Filing date Apr 26, 1996
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MTR, Inc.
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9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
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75091014 - MTR
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Serial number 75091014
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Registration number 2133767
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Filing date Apr 19, 1996
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MTR, Inc.
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9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments