UNDERSEA OBSERVATION GALLERY
An undersea observation gallery comprising an annular chamber having sight windows in the outer peripheral wall thereof and an independent combination ballast tank and pontoon connected to the top of said annular chamber and communicated with said annular chamber by a stairway, said annular chamber...
Gespeichert in:
Hauptverfasser: | , , , |
---|---|
Format: | Patent |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext bestellen |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Schreiben Sie den ersten Kommentar!