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US2623767A
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Control device for locking, closing, and ventilating means in windows and doors
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US2626024A
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Sash of metal profiles for windows and doors
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CA506914A
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Sash and frame construction
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CA536005A
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Locking mechanism
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CA498743A
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Window structure
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CA612971A
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Window sash with supporting bed for at least three panes
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CA506913A
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Framing for glazed windows and doors
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CA503526A
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Sashes of metal profiles for windows and doors
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CA597148A
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Radiators
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CA522107A
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Blind-head for metallic window sash
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CA506915A
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Metal doors
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CA506912A
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Windows or doors with insulation and/or screen
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CA500611A
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Swing door
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CA642955A
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Window sash with tubular profile
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CA598378A
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Metallic window with screening means
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