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| Patents for Arthur R. Robertson | |||||
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| Number | Date | Patentee | Title | Type | |
| 352,070 | Nov. 02, 1886 | A.R. Robertson | Magnetic Tack-Hammer | tack hammers | |
| 710,615 | Oct. 07, 1902 | A.R. Robertson | Magnetic Tack-Hammer | tack hammers | |