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Window and door assemblies
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Patent number 5,289,659
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Issue date Mar 1, 1994
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John Carr (Press Lock) Limited
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Ian Harrison
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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Window assemblies
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Patent number 4,999,958
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Issue date Mar 19, 1991
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John Carr (Press Lock) Limited
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Ian Harrison
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS