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| Patents for Robert A. Morrison | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 171,296 | Dec. 21, 1875 | J.S. Loomis | Improvement in adjusting the pressure-feet of molding-machines | |
| 2,708,985 | May 24, 1955 | W.M. Evans, R.A. Morrison | Lubrication system | ||