USPC 33/232
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Speedometers.
* CLASS 33, GEOMETRICAL INSTRUMENTS ** 227 STRAIGHT-LINE LIGHT RAY TYPE: *** 232 . Marine or aircraft ground speed indicator:[1]
References
- ↑ Class 33 GEOMETRICAL INSTRUMENTS, USPTO Classification Resources, retrieved 7 February 2022
| Enclosing categories | USPC 33/227 |
|---|---|
| Subcategories | |
| Keywords | Speedometer, Instrument, velocity, Method |
| Start year | |
| End year |
This wiki has 4 patents in category "USPC 33/232".
Other techtypes related to USPC 33/232: Speedometer
Patents in category USPC 33/232
- Patent US-1910-1121309 (English title: Course and Speed Indicating Device for Flying-Machines, Inventors: Robert M. Thompson, Filing date: 1910-06-30)
- Patent US-1912-1084831 (English title: Speed and Direction Indicator for Airships, Inventors: Melvin Vaniman, Filing date: 1912-02-08)
- Patent US-1912-1047584 (English title: Speed-finder for Moving Bodies, Inventors: Charles Semmes Stanworth, Filing date: 1912-05-08)
- Patent US-1913-1123253 (English title: Speedometer for Aeroplanes and Other Aerial Devices, Inventors: Oscar Alvin Danielson, Filing date: 1913-01-11)
