Difference between revisions of "DE 62b.8"
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Revision as of 20:08, 13 January 2021
This is one of the categories used for aeronautics in Germany probably after 1900. We don't yet have documentation here on the meaning of parent category DE 62. This wiki has 1 patents in category "DE 62b.8".
Patents in category DE 62b.8
- Patent DE-1907-208215 (English title: Screw for flying machines, airships and the like, Inventors: Adolf (Arthur) Hein, Filing date: 1907-08-05)
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