| Patents for Benjamin Grob |
Patents 1 -
12
of 12
      |
| Number | Date | Patentee | Title | Type |
| 1,949,742 | Mar. 06, 1934 | T. Grob, B. Grob | Filing Machine | filing machines |
| 1,958,477 | May 15, 1934 | T. Grob, B. Grob | Filing Machine | filing machines |
| RE19,999 | Jun. 09, 1936 | T. Grob, B. Grob | Filing Machine | filing machines |
| 2,050,490 | Aug. 11, 1936 | B. Grob | Open end band saw | metal cutting bandsaws |
| 2,090,195 | Aug. 17, 1937 | B. Grob | Open end band saw machine | bandsaws |
| 2,192,788 | Mar. 05, 1940 | T. Grob, B. Grob | Filing Machine | filing machines |
| 2,208,543 | Jul. 16, 1940 | B. Grob | Endless Abrasive Device | filing machines |
| 2,253,515 | Aug. 26, 1941 | T. Grob, B. Grob | Band saw | metal cutting bandsaws |
| 2,322,684 | Jun. 22, 1943 | T. Grob, B. Grob | Machine Tool | filing machines |
| 2,364,969 | Dec. 12, 1944 | T. Grob, B. Grob | Work feed | metal cutting bandsaws |
| 2,372,826 | Apr. 03, 1945 | B. Grob | Filing Machine | filing machines |
| 2,715,846 | Aug. 23, 1955 | E. Grob, B. Grob | Method of groove forming | gear making machines |
