| Patents for none listed |
Patents 2191 -
2205
of 3291
      |
| Number | Date | Patentee | Title | Type |
| D163,282 | May 15, 1951 | E.A. Heschel | Motor Stethoscope or the Like | |
| 2,552,905 | May 15, 1951 | J.S. Panosian | Film Identifying Means for Photographic Camera Film Holders | film and plate holders |
| 2,553,397 | May 15, 1951 | W. Ames | Opposed Contact Distance Measure | test indicators |
| D163,385 | May 22, 1951 | A.H. Hawes | Combined Hammer, Spanner, Tommy Bar and Crowbar | combination tools |
| D163,422 | May 22, 1951 | P.F. Gassien, J.T. Runkle | Combination Tool | combination tools |
| 2,554,990 | May 29, 1951 | L.E. Kilness | Ratchet Mechanism | ratchet wrenches |
| GB-654,003 | May 30, 1951 | n. listed | Improvements in Linear Dimension Gauges | limit gages |
| 2,555,395 | Jun. 05, 1951 | O.A. Capra | Rocking Fulcrum For Adjustable and Pivotal Outer Wrench Jaws | screw adjust wrenches |
| 2,556,761 | Jun. 12, 1951 | C.R. Keene | Combined Micrometer Caliper and Dial Gauge | micrometers |
| 2,556,945 | Jun. 12, 1951 | E.M. Roddick | Backout or Nipple Wrench | pipe wrenches |
| 2,557,296 | Jun. 19, 1951 | W.C. Kress | Pivot for Adjustable Fulcrum Pliers | pliers |
| 2,557,840 | Jun. 19, 1951 | F.W. Preslan | Valve Seat Gauge | |
| 2,558,158 | Jun. 26, 1951 | G.L. Rock | Safety Tool Handle | tool handles |
| 2,558,440 | Jun. 26, 1951 | J.N. Johnson | Adjustable Fulcrum Pliers | pliers |
| 2,559,973 | Jul. 10, 1951 | B.P. Kunz | Pivoted Jaw Wrench | pipe wrenches |
