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Patents for Delbert Sward | |||||
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Picture | Number | Date | Patentee | Title | |
![]() | 1,774,260 | Aug. 26, 1930 | V.S. Firestone, D. Sward | Latch | |
![]() | 1,796,923 | Mar. 17, 1931 | V.S. Firestone, D. Sward | Latch | |
![]() | 2,166,735 | Jul. 18, 1939 | D. Sward | Latch |