All Patents in class 91/390 |
Patents 1 -
6
of 6
|
Number | Date | Patentee | Title | Type |
646,458 | Apr. 03, 1900 | H.A. Pedrick | Pneumatic Hoisting Apparatus | hoists, winches, come-alongs |
675,112 | May 28, 1901 | R.A. Rutherford | Pneumatic Hoisting Apparatus | hoists, winches, come-alongs |
675,528 | Jun. 04, 1901 | R.A. Rutherford | Valve Device for Pneumatic Hoists | industrial valves |
702,979 | Jun. 24, 1902 | G.E. Martin | Pneumatic Hoist | hoists, winches, come-alongs |
2,775,235 | Dec. 25, 1956 | W.F. Jessup | Booster for Template Controlled Truing Mechanism | grinder dressers |
3,077,132 | Feb. 12, 1963 | C.H. Whitmore | Feed control for band saws | metal cutting bandsaws |