Patentti U.S. 1343 450 Boot or shoe sole. Haskelite Manufacturing Corporation, Michigan. (Henry L. Haskell) Application 196 419, 1917-10-13. (1920-06-15). 3 s.
Patentti U.S. 1552 112 Molded airplane wing. Dayton-Wright Company, Ohio. (Virginius E. Clark) Application 530 433, 1922-01-19. (1925-09-01). 6 s.
museumoftalkingboards.com
Haskelite Manufacturing Corporation (Hasko) Museum of Talking Boards. 1.11.2014. Viitattu 21.1.2016. (englanniksi) Lainaus: "Haskelite Manufacturing Corporation (1917-1958) perfected a way to mold bonded plywood into virtually any shape using pressure and H. L. Haskell's unique waterproof glue. Advertised in differing forms as Duromold, Plymetl, and Phemaloid, this product was ideal for applications that required a strong yet lightweight construction material. It was widely used in boats, trains, airplane fuselages and automobile door panels, just to name a few."
online.fr
aviadesign.online.fr
Fairchild 46-A (Clark GA-46 Duramold)Aviadesign. 25.5.2010. BIS Productions. Viitattu 21.1.2016. (englanniksi) Lainaus: "This handsome passenger transport was the idea of Col. Virginius E. Clark, Fairchild Corporate vice president of engineering. The fuselage was constructed according to the Haskelite bonded-plywood process, patented as Duromold and later changed to Duramold for incorporation. In fact the aircraft was a “proof of concept” design to explore the use of that process, which consisted in molded wood panels and structure, bonded together with a plastic resin under heat and pressure in an autoclave. A subsidiary company called Duramold aircraft company was created in 1937 to shepherd the project along."
