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| All Patents in class 441/111 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 1,619 | May 25, 1840 | R. Porter | Improvement in life-preservers or buoyant dresses | |
| 2,070,818 | Feb. 16, 1937 | G.A. Winckler | Lifesaving Jacket with Automatic Electric Lighting Unit | ||