| Patents for none listed |
Patents 1876 -
1890
of 3327
      |
| Number | Date | Patentee | Title | Type |
| 2,303,858 | Dec. 01, 1942 | O.A. Ostberg | Measuring Instrument | measurement gauges |
| 2,304,271 | Dec. 08, 1942 | C.D. Burbank, H.H. Merriman | Wrench For Spark Plugs and the Like | wrench sockets |
| 2,304,766 | Dec. 08, 1942 | L.E. Pratt | Universal Coupling | wrench components |
| 2,305,737 | Dec. 22, 1942 | J.H. Richards | Boring Attachment for Milling Machines | milling machine tools |
| 2,306,970 | Dec. 29, 1942 | F. MacPherson, C.G. Gunderson | Key Retainer | |
| 2,307,323 | Jan. 05, 1943 | D. Laflamme | Measuring Instrument | measurement gauges |
| 2,307,950 | Jan. 12, 1943 | G.P. Barrrott, H.F. Plaut | Linear Dimension Gauge or Comparator | comparators |
| 2,308,011 | Jan. 12, 1943 | S.G. Johnson | Lead Tester for Screw Threads | measurement gauges |
| 2,309,299 | Jan. 26, 1943 | C.A. Bickel | Method of and Apparatus for Correcting the Lead Error of Screw Threads | screwcutting lathes |
| 2,311,142 | Feb. 16, 1943 | F. Turrettini | Precision Machine Tool | metalworking machines |
| 2,311,323 | Feb. 16, 1943 | R.H. Addis | Rivet Gage | special purpose gauges |
| 2,311,477 | Feb. 16, 1943 | W.A. Semerak | Inside Micrometer | inside micrometers |
| 2,312,104 | Feb. 23, 1943 | K.R. Larson | Torque Wrench | torque wrenches |
| D135,138 | Mar. 02, 1943 | F.G. Eubanks | Compass | compasses |
| D135,158 | Mar. 02, 1943 | H.M. Miller | Spanner Wrench | spanner wrenches |
