|
2006
|
Invention
|
Airship for lifting heavy loads & methods of operation. This invention relates to the field o... |
|
|
Invention
|
Improved airship & method of operation. This invention relates to the field of buoyant aircra... |
|
2005
|
Invention
|
Airship for lifting heavy loads & methods of operation.
This invention relates to the field of b... |
|
|
Invention
|
Airship & method of operation. This invention relates to the field of buoyant aircraft and operat... |
|
2003
|
Invention
|
Airship and method of operation. An airship has a generally spherical shape and has an internal e... |
|
1992
|
Invention
|
Airship and method for controlling its flight. A non-rigid airship is provided which includes a g... |
