| Patents for Automotive Maintenance Machinery Co. |
Patents 1 -
10
of 19
      |
| Picture | Number | Date | Patentee | Title |
 | 1,522,720 | Jan. 13, 1925 | H.C. Heon | Cylinder-grinding tool |
 | 1,774,711 | Sep. 02, 1930 | H.C. Heon | Cylinder-grinding tool |
 | 1,925,709 | Sep. 05, 1933 | H.W. Zimmerman | Cylinder grinding tool |
 | 1,957,485 | May 08, 1934 | H.W. Zimmerman | Cylinder grinding tool adjusting mechanism |
 | 1,959,891 | May 22, 1934 | H.W. Zimmerman | Bearing hone |
 | 1,987,457 | Jan. 08, 1935 | H.W. Zimmerman | Cylinder grinding tool |
 | 2,002,971 | May 28, 1935 | H.W. Zimmerman | Reamer sharpener |
 | 2,007,490 | Jul. 09, 1935 | H.W. Zimmerman | Ring filing structure |
 | 2,013,374 | Sep. 03, 1935 | H.W. Zimmerman | Connecting rod alignment gauge |
 | 2,047,607 | Jul. 14, 1936 | H.W. Zimmerman | Gauging Device |
