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Astragal housing seal and lock
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Patent number 4,429,493
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Issue date Feb 7, 1984
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LST Corporation
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William R. St. Aubin
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Inswing door bottom and sill assembly
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Patent number 4,411,104
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Issue date Oct 25, 1983
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LST Corporation
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William R. St. Aubin
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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Security strike plate assembly
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Patent number 4,171,836
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Issue date Oct 23, 1979
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LST Corporation
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William R. St. Aubin
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES