- Floats projecting from the boat apparently weren't a desirable solution for F. W. Zeidler and C. Halpern, who in 1921 came up with a system to rotate the canoeist, rather than add to the exterior of the boat. In terms of catching on, this patent did not.
F. W. Zeidler & C. Halpern
From Canoes: A Natural History in North America by Mark Neuzil and Norman SimsCreator(s) | |
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