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| Patents for Charles Bond Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 939,829 | Nov. 09, 1909 | J.R. Grundy | Insulating shaft-coupling | industrial machine shaft couplings | |
| CA-126,834 | Jul. 12, 1910 | J.R. Grundy | Insulating shaft-coupling | industrial machine shaft couplings | |