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| Patents for Carl A. Johnson | |||||
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| Number | Date | Patentee | Title | Type | |
| 501,683 | Jul. 18, 1893 | F. Johnson, C.A. Johnson | Gaining-machine | specialty woodworking machines | |
| 657,242 | Sep. 04, 1900 | C.A. Johnson | Turret Lathe | turret lathes | |