Difference between revisions of "CPC B64C11/301"
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Latest revision as of 11:41, 23 April 2022
. . . characterised by blade position indicating means
Enclosing categories | CPC B64C11/30 |
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Keywords | Propellers |
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This wiki has 1 patents in category "CPC B64C11/301".
Patents in category CPC B64C11/301
- Patent US-1922-1420619 (Inventors: Robert W BARTON, Filing date: 1918-09-28)