USPC 89/1.57
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U.S. Patent Classification 89/1.57 is for technologies of bomb, flare, and signal dropping where the ordnance to be dropped is separated from the aircraft by an explosion.[1][2]
- Patents in this category
- Patent US-1863-37771 (National tech categories: USPC 89/1.51 • USPC 89/1.14 • USPC 89/1.57 • USPC 102/387, Inventors: Charles Perley)
- Patent US-1901-676838 (National tech categories: USPC 446/51 • USPC 244/147 • USPC 89/1.57, Inventors: Jefferson Davis Dawson)
References
- ↑ Definition of USPC subclass 89/1.57 at USPTO web site
- ↑ Schedule of class 89 at uspto.gov
| Enclosing categories | USPC 89, USPC 89/1.51 |
|---|---|
| Subcategories | |
| Keywords | Ordnance |
| Start year | |
| End year |
