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Security closure
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Patent number 5,937,593
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Issue date Aug 17, 1999
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Vacant Property Security Limited
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David A. White
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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Locking mechanism
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Patent number 5,832,758
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Issue date Nov 10, 1998
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Vacant Property Security Limited
-
David A. White
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Security closure
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Patent number 5,832,671
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Issue date Nov 10, 1998
-
Vacant Property Security Limited
-
David A. White
-
E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS