| Patents for none listed |
Patents 2191 -
2205
of 3122
      |
| Number | Date | Patentee | Title | Type |
| 2,641,478 | Jun. 09, 1953 | J.A. Sigg | Screwdriver | screwdriver mechanisms |
| 2,642,848 | Jun. 23, 1953 | R.G. Knudsen, G.M. Walraven | Air Valve Mechanism for Controling the Operation of Pneumatic Devices and the Like | |
| 2,643,459 | Jun. 30, 1953 | S.G. Snortland, B.E. Beers | Measuring Device for Pistons in Depth Engines | special purpose gauges |
| 2,643,460 | Jun. 30, 1953 | E.C. Zirzow, W.P. Adair, H.W. Dietert | Hardness Testing Indicator | |
| 2,644,131 | Jun. 30, 1953 | W.R. Elwell, G.M. Walraven | Timing Indicator for Internal Combustion Engines | vehicle mechanic |
| 2,644,240 | Jul. 07, 1953 | J.A. Stedman | Easy Reading Micrometer Caliper | special purpose gauges |
| 2,645,020 | Jul. 14, 1953 | S.A. Foster | Accurately Repeating Dial Type Comparator | comparators |
| 2,645,142 | Jul. 14, 1953 | O. Schwenzfeler | Spark Plug Adjusting Pliers | spark plug adjusting |
| 2,645,886 | Jul. 21, 1953 | D.R. Peterson | Surface Grinder | surface grinders |
| 2,645,965 | Jul. 21, 1953 | V. Resch | Dual Wheel Wrench | socket wrenches |
| D170,301 | Sep. 01, 1953 | C.E. Branick | Fluid Pressure Operated Bumper Jack for Automotive Vehicles | |
| 2,650,437 | Sep. 01, 1953 | E.A. Glynn | Tire Gauging Device | tire repair tools |
| 2,650,512 | Sep. 01, 1953 | C.G. Ertell, W.J. Johnson | Pipe Wrench with Nut Fulcrumed Pivoted Outer Jaw | pipe wrenches |
| 2,654,282 | Oct. 06, 1953 | M.W. Emmett | Adjusting Means for Slideable Jaw Wrenches | pliers type wrenches |
| 2,656,751 | Oct. 27, 1953 | C.G. Ertell, W.J. Johnson | Replaceable Jaw Insert for Pipe Wrenches | wrench jaw components |
