| All Patents in class 29 |
Patents 1321 -
1335
of 2222
      |
| Number | Date | Patentee | Title | Type |
| 1,814,267 | Jul. 14, 1931 | C.H. Swartz | Cylinder sleeve and method of producing the same | |
| 1,814,350 | Jul. 14, 1931 | F.J. Theler | Grinding Machinery | grinding machines |
| 1,815,980 | Jul. 28, 1931 | M.C. Dellinger, H.W. Kulp | Valve Spring Lifter | valve spring tools |
| 1,816,117 | Jul. 28, 1931 | G.P. Kline | Rim Machine and Method of Forming Rims | tire rim making machines |
| 1,817,083 | Aug. 04, 1931 | J.B. Armitage, E.J. Kearney | Machine Tool | milling machines |
| 1,821,569 | Sep. 01, 1931 | C.B. Nelson | Sawing-trimming machine | tablesaws |
| 1,824,743 | Sep. 22, 1931 | K.B. Neu | Piston Pin Tool | automotive tools |
| 1,825,873 | Oct. 06, 1931 | M.C. Dellinger, H.W. Kulp | Wrist Pin Inserting Tool | automotive tools |
| 1,830,151 | Nov. 03, 1931 | C.G. Wilderson | Dust collector and guard for saws | woodworking machine safety guards |
| 1,832,694 | Nov. 17, 1931 | L.F. Nenninger, H. Ernst | Auxiliary Manual Means for Actuating Hydraulic Motors | hydraulic apparatus |
| 1,835,591 | Dec. 08, 1931 | E.P. Bullard | Automatic Work Feeding and Chucking Means for Multiple Spindle Lathes | |
| 1,840,051 | Jan. 05, 1932 | L.F. Nenninger | Milling Machine | milling machines |
| 1,841,300 | Jan. 12, 1932 | W.T. Scarritt | Tubing | |
| 1,845,478 | Feb. 16, 1932 | E.P. Bullard, Jr. | Automatic Multiple Spindle Center Turning Machine | |
| 1,848,044 | Mar. 01, 1932 | L.H. Blood | Broaching Machine | broaching machines |
