Water Propulsion Oar Small 320×150 Medium 640×299 Large 1024×479 Download Tiff Original 2400×1122 | (536.1 KB) Description An oar is a tool used for water propulsion. Oars in general have one flat blade at one end. The user grabs the oar at the other end. Keywords blade, oar, paddle, Pole, propel, row, Rower, scull, spoon, sweep Galleries Human-Powered Transportation Source: Government Printing Office The Official Gazette of the United States Patent Office (Washington, DC: Government Printing Office, 1895)
