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Sills for building construction
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Patent number 4,193,231
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Issue date Mar 18, 1980
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Radway Plastics Limited
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George Molyneux
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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Structural elements for sub-frames
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Patent number 4,136,496
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Issue date Jan 30, 1979
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Radway Plastics Limited
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George Molyneux
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS