CA 244/21
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CA 244/21 is a Canadian patent category for "Paddle-Wheel and/or Cylindrical Rotor Sustained."[1][2][3]
References
This wiki has 2 patents in category "CA 244/21".
Patents in category CA 244/21
- Patent CA-1878-8860 (English title: Improvements on flying machines, Inventors: Richard William Cowan • Charles Pagé, Filing date: 1878-04-09)
- Patent CA-1908-115382 (English title: Aeroplane, Inventors: James Edward Fraser, Filing date: 1908-09-11)
| Enclosing categories | CA 244/3 |
|---|---|
| Subcategories | |
| Keywords | paddle wheel, rotor |
| Start year | |
| End year |
