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Shallow double hung window
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Patent number 4,586,291
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Issue date May 6, 1986
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Windows, Inc.
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Charles A. Swan
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Shallow double hung window
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Patent number 4,503,641
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Issue date Mar 12, 1985
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Windows, Inc.
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Charles A. Swan
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Shallow double hung window
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Patent number 4,420,907
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Issue date Dec 20, 1983
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Windows, Inc.
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Charles A. Swan
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES