AMAZING HISTORICAL DOCUMENTS!Edward Bullard submitted his patent for the gas mask on July 20, 1936 and was granted design by the United States Patent & Trademark Office on April 13, 1937!!!! Now you can have a piece of that history by getting your very own COPY of the drawing and design specifications that were submitted to the US Patent & Trademark Office. No joke. Very cool stuff.Total of 2 pages. Document copies measure 8 ½ X 11 inches in size and contain fascinating information to read and study. Painstakingly restored and digitally enhanced documents are the very best quality. Bid now!PERFECT TO FRAME AND DISPLAY!!!I SHIP QUICKLY & CAREFULLY IN FLAT, 10x13 ENVELOPE SO BID WITH CONFIDENCE!
| Return Shipping Will Be Paid By | Buyer |
| All Returns Accepted | Returns Accepted |
| Item Must Be Returned Within | 30 Days |
| Gas Mask | Patent |
| Country/Region Of Manufacture | United States |
| Type | Patent |
AMAZING HISTORICAL DOCUMENTS!Edward Bullard submitted his patent for the gas mask on July 20, 1936 and was granted design by the United States Patent & Trademark Office on April 13, 1937!!!! Now you can have a piece of that history by getting your very own COPY of the drawing and design specifications that were submitted to the US Patent & Trademark Office. No joke. Very cool stuff.Total of 2 pages. Document copies measure 8 ½ X 11 inches in size and contain fascinating information to read and study. Painstakingly restored and digitally enhanced documents are the very best quality. Bid now!PERFECT TO FRAME AND DISPLAY!!!I SHIP QUICKLY & CAREFULLY IN FLAT, 10×13 ENVELOPE SO BID WITH CONFIDENCE!
