| Patents for C. R. Ferguson |
Patents 1 -
15
of 19
      |
| Number | Date | Patentee | Title | Type |
| 384,467 | Jun. 12, 1888 | W.C. Perkins | Improvements in Wheel-Wrenches for Axle-Nuts | axle nut wrenches that lock nut to wheel hub |
| 407,039 | Jul. 16, 1889 | A.W. Roovers | Coin operated machine | |
| 419,816 | Jan. 21, 1890 | B.G. Berrien, Jr. | Improved Pipe Wrench | pipe tongs |
| 423,702 | Mar. 18, 1890 | A.H. Roovers, A.W. Roovers | Coin operated power or strength testing machine | |
| 439,189 | Oct. 28, 1890 | A.W. Roovers, A.H. Roovers | Coin controlled microscope | |
| 439,190 | Oct. 28, 1890 | A.H. Roovers, A.W. Roovers | Coin controlled microscope | |
| 491,971 | Feb. 14, 1893 | W.W. Roovers, P.G. Williams | Coin controlled dice throwing machine | |
| 566,614 | Aug. 25, 1896 | S. Olsen | Tool For Twisting Electric Wire Sleeve Connections. | wrenches |
| 567,492 | Sep. 08, 1896 | W. Cook, J. Musgrave | Pipe Wrench | chain and strap wrenches |
| 573,732 | Dec. 22, 1896 | E.T. Warn | Ratchet Wrench | ratchet wrenches |
| 596,809 | Jan. 04, 1898 | C. Guyer | Gas Engine | gas and gasoline engines |
| 626,604 | Jun. 06, 1899 | F.K. Gaff | Mechanical Device | bar and pipe clamps |
| 627,371 | Jun. 20, 1899 | R. Willis | Pipe Wrench | chain and strap wrenches |
| 743,915 | Nov. 10, 1903 | W.J. McVicker | Valve Gear For Explosive Engines | internal combustion engine valves |
| 751,522 | Feb. 09, 1904 | A.A. Koch | Power Hammer | forging machines |
