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| Patents for G. B. Marshall | |||||
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| Number | Date | Patentee | Title | Type | |
| CA-136,075 | Oct. 10, 1911 | W.L. Bessolo | Wrench | pipe wrenches | |
| 1,294,935 | Feb. 18, 1919 | . | Angle and Arc Dividing Ruler | rules | |