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Adjustable door frame assembly
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Patent number 4,986,034
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Issue date Jan 22, 1991
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Copco Door Company
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Gary Mozuras
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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Adjustable door frame assembly
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Patent number 4,912,879
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Issue date Apr 3, 1990
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Copco Door Company
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Gary Mozuras
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS