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| Patents for Greenerd Arbor Press Co. | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 464,316 | Dec. 01, 1891 | R.C. Greenerd | Machine for Applying and Removing Collars from Shafts | |
| 2,214,881 | Sep. 17, 1940 | H.A. Doherty | Combination Straightening Block and Test Roll | ||