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| All Patents in class 198/782 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 572,023 | Nov. 24, 1896 | F. McDonough | Loading or unloading apparatus | |
| 3,129,823 | Apr. 21, 1964 | G.A. Bilocq | Centering mechanism for paper rolls and the like | ||
 | 4,322,919 | Apr. 06, 1982 | D.J. Gerber | Self-centering feed mechanism for an abrasive grinding machine | |
| 5,086,910 | Feb. 11, 1992 | P.D. Terpstra | Zone Controlled Conveyance System | ||