Kite patents filed in 1937.
Unless otherwise stated, the numbered patent is a US patent. We welcome
patents from all nations and welcome volunteers to bring forward such
patents.
- Improvements in or relating to Wind-driven Power Apparatus
by A. Van Gries
Dr. Ing. A. Van Gries, of 72, Nussbaumerstrasse, Koln, Germany, a German
citizen
Application date: July 27, 1937.
Accepted July 20, 1938.
http://www.energykitesystems.net/Gries/GB489139A.pdf
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