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Drywall repair patch
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Patent number 7,971,405
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Issue date Jul 5, 2011
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The Great Wall Patch Co., Inc.
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Daniel R. Hansen
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E04 - BUILDING
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Drywall repair patch
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Patent number 7,380,382
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Issue date Jun 3, 2008
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The Great Wall Patch Co., Inc. a California corporation
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Daniel R. Hansen
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Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
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Masking device and method
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Patent number 6,852,408
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Issue date Feb 8, 2005
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E-Z Mask, Inc.
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Daniel Hansen
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B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...