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| Patents for Gardner Machine Co. | |||||
| Number | Date | Patentee | Title | Type | |
| 1,013,760 | Jan. 02, 1912 | F.N. Gardner, F.E. Gardner | Disk grinder | sanding machines | |
| 1,576,820 | Mar. 16, 1926 | F.E. Gardner | Grinding machine | disk sanders | |