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Home › Swinging folding door and a swinging folding gate; and a swinging folding door with an emergency opening device and a swinging folding gate with an emergency opening device

Swinging folding door and a swinging folding gate; and a swinging folding door with an emergency opening device and a swinging folding gate with an emergency opening device

US Patent 6283189 · Granted Sep 4, 2001

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