Apparatus and method utilizing cells to provide lift in lighter-than-air airships
A Standard patent application filed on 13 December 2000 credited to Brotz, Gregory R.
Details
Application number :
2001236354
Application type :
Standard
Application status :
LAPSED
Under opposition :
No
Proceeding type :
Invention title :
Apparatus and method utilizing cells to provide lift in lighter-than-air airships