UNT Libraries Government Documents Department - 3 Matching Results

Search Results

Adjustable and Detachable Bow for Spectacles.
Patent for a temple bow for spectacles which is secured to a lens frame and is adjustable to “accommodate the angle of vision of the wearer” (lines 89-90). The connection joints between the bow and lens frame allows adjustment without bending or twisting the bow, providing a more durable bow and frame.
Baling-Press
Patent for a baling press. Illustrations included.
Well-Drilling Apparatus.
Patent for a well drilling apparatus, which is light and strong and easily transported.
Back to Top of Screen