USPC 244/19
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USPC 244/19 was a patent classification for aeronautical machines whose lift was sustained by the downward thrust from rotating paddle wheels, which may also propel the craft.[1]
- USPC 244 Aero and astro
- USPC 244/19 Paddle wheel sustained: Aeronautical machines sustained by the downward thrust from rotating paddle wheels, which may also propel the craft
- USPC 244/20 Feathering: Aeronautical machines in which the arrangement of the blades of the paddle wheels varies as the paddle wheel rotates
- USPC 244/19 Paddle wheel sustained: Aeronautical machines sustained by the downward thrust from rotating paddle wheels, which may also propel the craft
References
- ↑ Description of sublass USPC 244/19 from US Patent and Trademark Office
This wiki has 6 patents in category "USPC 244/19".
Patents in category USPC 244/19
- Patent US-1869-100415 (English title: Aerial cars, Inventors: A. P. Keith, Filing date: 1869-09-21)
- Patent US-1872-133381 (English title: Apparatus for aerial navigation, Inventors: Thomas Moy • Richard Edmund Shill, Supplementary to patent: Patent GB-1871-3238, Filing date: 1872-11-26)
- Patent US-1906-811886 (English title: Construction of submarine boats, Inventors: Thomas Henry Wheless, Filing date: 1903-11-03)
- Patent US-1907-882189 (English title: Flying-machine, Inventors: Edwin L. Drake, Filing date: 1907-03-25)
- Patent US-1913-1051659 (English title: Apparatus employed in flight through the air, Inventors: Butler Ames, Filing date: 1908-04-27)
- Patent US-1909-932884 (English title: Air-Ship, Inventors: John Muckle, Filing date: 1908-07-03)
| Enclosing categories | USPC 244 |
|---|---|
| Subcategories | USPC 244/20 |
| Keywords | paddle wheels |
| Start year | |
| End year |
