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| Patents for Southwark Foundry & Machine Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 909,214 | Jan. 12, 1909 | G.B. Petsche | Admission Valve for Gas Engines | internal combustion engine valves | |
| 1,281,965 | Oct. 15, 1918 | M.C. Hutchinson | Angle Planing Machine | ||
| 1,656,323 | Jan. 17, 1928 | C.B. Gray | Machine for Cutting Sheet-Form Metal | metal shearing machines | |