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Door lock structure
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Patent number 4,694,669
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Issue date Sep 22, 1987
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Dynaflair Corporation Canada Inc.
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Horst Schwalb
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Rolling safety doors
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Patent number 4,332,287
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Issue date Jun 1, 1982
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Dynaflair Corporation Canada, Inc.
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Rudolf Stolpe
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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Protective grille
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Patent number RE29308
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Issue date Jul 19, 1977
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Dynaflair Corporation Ltd.
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Robert Dagenais
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160 - Flexible or portable closure, partition, or panel