Cover your cave walls with these awesome framed technical drawings. Inspired by actual historic patent applications.
This Patent for a Exhalation Valve For Diving Suits was invented by Galeazzi Roberto and filed on May 3, 1951. It was issued on November 2, 1954 by the United States Patent and Trademark Office.
- FREE Shipping!!! (No additional costs)
- Made in U.S.A.
Available in five different sizes and nine different visual styles:
NOTE: The images shown here of the Patent Print is a low resolution, untouched up version for easier web browsing. The print you will receive will be of a higher restored version (which includes cleaning up stray marks, straightening, etc) but it will maintain the original look of the Patent. It will also not have a logo or water marks on it.
***Contact Us if you would like to see additional options for frames, and if you'd like to see the design before placing an order.***
***PLEASE NOTE: Product will arrive within 5-10 days, and we currently only ship within the Continental USA (not Alaska or Hawaii).***
***PLEASE READ our Return Policy before placing any order***