UNT Libraries Government Documents Department - 4 Matching Results

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Button Display Attachment for Boxes: Patent for a button display to provide means to secure to any enclosing display to secure buttons.
Latch: Patent for improvements to latches for swinging gates and doors and provide a method of opening the latch from either side of the gate.
Roof-Climber.: Patent for a roof climber for use by workers on roofs that allows them to stand supported by it or sit on it and have their weight equally distributed
Safety Hat Pin: Patent for a safety hat pin for protection against workplace injuries, including illustrations.