Patents for Francis A. Pratt |
Patents 16 -
24
of 24
|
Number | Date | Patentee | Title | Type |
189,057 | Apr. 03, 1877 | J.R. Reynolds, F.A. Pratt | Improvement in machines for varnishing the interior of cartridge-shells | cartridges |
241,236 | May 10, 1881 | F.A. Pratt | Adjustable lever | cranes |
241,563 | May 17, 1881 | F.A. Pratt | Metal-planing machine | metal planers |
319,618 | Jun. 09, 1885 | F.A. Pratt | Frame and carriage for machines | |
323,202 | Jul. 28, 1885 | F.A. Pratt | Milling-machine | |
504,172 | Aug. 29, 1893 | J. Johnson, F.A. Pratt | Roll Grooving Machine | metal planers |
534,008 | Feb. 12, 1895 | F.A. Pratt | Drop Hammer | drop hammers |
627,349 | Jun. 20, 1899 | F.A. Pratt | Drop Hammer Operating Means | drop hammers |
627,350 | Jun. 20, 1899 | F.A. Pratt | Drop Hammer Operating Means | drop hammers |