| Patents for Production Machine Co. |
Patents 1 -
10
of 11
      |
| Picture | Number | Date | Patentee | Title |
 | 944,658 | Dec. 28, 1909 | J.C. Blevney | Belt-joint |
 | 953,031 | Mar. 29, 1910 | J. Hausman, J.C. Blevney | Grinding and polishing machine |
 | 980,052 | Dec. 27, 1910 | J. Hausman, J.C. Blevney | Grinding and polishing machine |
 | 980,053 | Dec. 27, 1910 | J. Hausman, J.C. Blevney | Grinding and polishing machine |
 | 980,054 | Dec. 27, 1910 | J. Hausman, J.C. Blevney | Abrasive machine |
 | 1,043,194 | Nov. 05, 1912 | J.C. Blevney | Grinding and polishing machine |
 | 1,052,453 | Feb. 11, 1913 | J.C. Blevney | Grinding and polishing machine |
 | 1,052,455 | Feb. 11, 1913 | J.C. Blevney | Polishing-machine |
 | 1,134,508 | Apr. 06, 1915 | J.C. Blevney | Grinding and polishing machine |
 | 1,594,445 | Aug. 03, 1926 | J.C. Blevney | Work holding and feeding device for grinding or polishing machines |
