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| Patents for Robert A. Ryrie | |||||
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| Number | Date | Patentee | Title | Type | |
| 583,947 | Jun. 08, 1897 | R.A. Ryrie | Pipe Wrench | chain and strap wrenches | |
| 594,563 | Nov. 30, 1897 | R.A. Ryrie | Pipe Wrench | chain and strap wrenches | |