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| Patents for G. Robert Thomas | |||||
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| Number | Date | Patentee | Title | Type | |
| 979,225 | Dec. 20, 1910 | H.E. Thompson | Siding-Tool | clapboard markers | |
| 1,000,940 | Aug. 15, 1911 | W. Potter | Scriber | scribes | |
| 1,003,863 | Sep. 19, 1911 | J. Arnet | Listing Indicator | pendulum levels | |