Kite patents filed in 1940.
Unless otherwise stated, the numbered patent is a US patent. We welcome
patents from all nations and welcome volunteers to bring forward such
patents.
- 1940, May 7
Orla E. Bradford instructs an AWECS that converts the upper wind energy
to sound via a turbine onboard the kite.
US Pat. 2240881 Yet same Bradford had
the turbine in kite making noise in a filed instruction in 1930:
Patent number:
1824324 Filing date: Feb 20, 1930
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