USPC 114/54
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U.S. Patent Classification (USPC) class 114/54 covers bags or receptacles for containing air and to be inside or attached to sunken vessels where they can be inflated and thus raise the craft through a fluid, normally water.[1][2]
References
- Patents in this category
- Patent US-1905-806049 (National tech categories: USPC 244/127 • USPC 114/54, Inventors: DeWitt C Bassett)
| Enclosing categories | USPC 114 |
|---|---|
| Subcategories | |
| Keywords | gas bags, Ascent, Elevation, Descent, Gas pressure, Hydrogen, Inflation |
| Start year | |
| End year |
