| Patents for Blackhawk Mfg. Co. |
Patents 31 -
45
of 80
      |
| Number | Date | Patentee | Title | Type |
| D109,499 | May 03, 1938 | E.M. Pfauser | Jack | |
| 2,138,194 | Nov. 29, 1938 | E.M. Pfauser | Hydraulic Pump | hydraulic pumps |
| D113,331 | Feb. 14, 1939 | E.M. Pfauser | V-Base for Metal Straightening Equiptment | |
| D115,416 | Jun. 27, 1939 | S. Mandl | Torque Indicating Tool | torque wrenches |
| 2,164,621 | Jul. 04, 1939 | E.M. Pfauser | Automobile Jack | |
| 2,165,285 | Jul. 11, 1939 | S. Mandl | Spring Perch and Brake Bracket Remover | brake adjusting tools |
| 2,165,503 | Jul. 11, 1939 | E.M. Pfauser | Portable Hydraulic Metal Straightening Machine | |
| D116,269 | Aug. 22, 1939 | S. Mandl | Arbor Press | |
| 2,190,081 | Feb. 13, 1940 | E.M. Pfauser | Coupling | wrench components |
| 2,200,133 | May 07, 1940 | S. Mandl | Method of and Means for Straightening Out Deformed Automobile Bodies and the Like | |
| D121,616 | Jul. 23, 1940 | E.M. Pfauser | Illuminable Jack | |
| 2,214,257 | Sep. 10, 1940 | E.M. Pfauser | Hydraulic Power Unit | |
| 2,218,319 | Oct. 15, 1940 | E.M. Pfauser | Adjustable Extension | |
| 2,219,903 | Oct. 29, 1940 | E.M. Pfauser | Jack Illumination | |
| 2,235,643 | Mar. 18, 1941 | E.M. Pfauser | Apparatus for Inserting and Removing Shackle Pins | |
