All Patents of Type: cranes |
Patents 1 -
15
of 23
|
Number | Date | Patentee | Title | Type |
2,218X | Nov. 08, 1814 | T. Reynolds | Crane, screw and bale for raising mill stones | cranes |
3,056X | Dec. 31, 1818 | E. Smith | Lever crane | cranes |
4,825X | Jul. 21, 1827 | G. Hill, E. Mann | Portable crane for raising brick, etc. | cranes |
8,290X | Jul. 08, 1834 | H. Bradford | Crane | cranes |
9,389X | Feb. 12, 1836 | E. Marsh | Crane | cranes |
9,813X | Jun. 30, 1836 | G. Sherwood | Derrick (Crane) | cranes |
1,089 | Feb. 24, 1839 | W.S. Otis | Crane-Excavator for Excavating and Removing Earth | cranes |
24,912 | Jul. 26, 1859 | J.Y. Parce | Hoisting Crane | cranes |
79,710 | Jul. 07, 1868 | S.K. Wellman | Hydraulic Jack | cranes |
CA-1,222 | Nov. 17, 1871 | T. Northey | Northey's improved triple barreled steam crane | cranes |
168,412 | Oct. 05, 1875 | F.A. Pratt | Improvement in cranes | cranes |
241,236 | May 10, 1881 | F.A. Pratt | Adjustable lever | cranes |
285,100 | Sep. 18, 1883 | H.M. Barnhart, E. Huber | Traveling crane | cranes |
325,309 | Sep. 01, 1885 | H.M. Barnhart, E. Huber | Device for loading and unloading cars | cranes |
788,606 | May 02, 1905 | R.F. Scott, P. Mullen | Hoisting mechanisms | cranes |