CA 244/28
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CA 244/28 is a Canadian patent category for captive balloons for lighter-than-air aircraft.[1][2][3]
Nearby tech classification tree:
- Class 244 Aeronautics
- CA 244/24 Lighter-than-air aircraft
- CA 244/25 Lighter-than-air aircraft with sustaining wings
- CA 244/26 Lighter-than-air aircraft sustained by beating wings or helicopters
- CA 244/27 Balloons for lighter-than-air aircraft
- CA 244/28 Captive balloons for lighter-than-air aircraft
- CA 244/29 Propulsion and control of lighter-than-air airships
- CA 244/30 Gas buoyancy and inflation for propulsion and control of lighter-than-air airships
- CA 244/31 Construction of lighter-than-air aircraft
- CA 244/32 Construction of gas cells for lighter-than-air aircraft
- CA 244/24 Lighter-than-air aircraft
References
This wiki has 1 patents in category "CA 244/28".
Patents in category CA 244/28
- Patent CA-1880-13781 (English title: Improvements in Aerial Balloons, Inventors: Comte Antoine Apraxine, Filing date: 1880-05-25)
| Enclosing categories | CA 244/27, CA 244/24 |
|---|---|
| Subcategories | |
| Keywords | LTA, Balloon, Airship |
| Start year | |
| End year |
