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| All Patents in class 322/13 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,122,287 | Dec. 29, 1914 | J.F. Lincoln | Charging System for Storage Batteries | battery charging devices | |
| 1,373,621 | Apr. 05, 1921 | J.F. Lincoln | Safety Charging Device for Batteries | battery charging devices | |