| Patents for Lewis R. Heim |
Patents 1 -
15
of 18
      |
| Number | Date | Patentee | Title | Type |
| 1,210,937 | Jan. 02, 1917 | L.R. Heim | Roll-grinding machine | centerless grinders |
| 1,264,928 | May 07, 1918 | L.R. Heim | Device for Feeding Rolls for End Grinding | |
| 1,264,929 | May 07, 1918 | L.R. Heim | Grinding Machine | |
| 1,264,930 | May 07, 1918 | L.R. Heim | Roll Grinding Machine | |
| 1,281,366 | Oct. 15, 1918 | L.R. Heim | Method of Grinding Hardened Rolls | |
| RE15,035 | Jan. 25, 1921 | L.R. Heim | Roll-grinding machine | centerless grinders |
| 1,644,057 | Oct. 04, 1927 | L.R. Heim | Grinding Machine | grinding machines |
| 1,647,129 | Nov. 01, 1927 | L.R. Heim | Grinding | grinding machines |
| 1,647,130 | Nov. 01, 1927 | L.R. Heim | Art of Grinding | grinding machines |
| 1,647,131 | Nov. 01, 1927 | L.R. Heim | Grinding | grinding machines |
| 1,683,974 | Sep. 11, 1928 | L.R. Heim | Grinding Apparatus | grinding machines |
| 1,691,061 | Nov. 13, 1928 | L.R. Heim | Grinding Device | grinding machines |
| 1,692,834 | Nov. 27, 1928 | L.R. Heim | Art and Apparatus for Producing Ground Articles | grinding machines |
| 1,709,348 | Apr. 16, 1929 | L.R. Heim | Method and Apparatus for Producing Ground Articles | grinding machines |
| 1,733,087 | Oct. 22, 1929 | L.R. Heim | Grinding Apparatus | grinding machines |
