| Patents for Lewis R. Heim |
Patents 1 -
10
of 18
      |
| Picture | Number | Date | Patentee | Title |
| | 1,210,937 | Jan. 02, 1917 | L.R. Heim | Roll-grinding machine |
| | 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 |
| | 1,644,057 | Oct. 04, 1927 | L.R. Heim | Grinding Machine |
| | 1,647,129 | Nov. 01, 1927 | L.R. Heim | Grinding |
| | 1,647,130 | Nov. 01, 1927 | L.R. Heim | Art of Grinding |
| | 1,647,131 | Nov. 01, 1927 | L.R. Heim | Grinding |
