USPC 396/7
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| Enclosing categories | USPC 396 |
|---|---|
| Subcategories | |
| Keywords | Photography |
| Start year | |
| End year |
This wiki has 3 patents in category "USPC 396/7".
Patents in category USPC 396/7
- Patent US-1903-757825 (English title: Rocket apparatus for taking photographs, Inventors: Alfred Maul, Filing date: 1903-06-20)
- Patent US-1906-863035 (English title: Device for maintaining instruments in adjusted positions, Inventors: Alfred Maul, Filing date: 1906-05-17)
- Patent US-1909-1002897 (English title: Aerial photographic apparatus, Inventors: Nat Elmer Brown, Filing date: 1909-07-17)
