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| Patents for Allan D. Skinner | |||||
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| Picture | Number | Date | Patentee | Title | |
| 1,119,462 | Dec. 01, 1914 | R.C. Stevens, A.D. Skinner | Steam Engine Valve | ||
| CA-221,673 | Aug. 01, 1922 | A.D. Skinner | Regulateur de Vitesse | ||
| 1,574,761 | Mar. 02, 1926 | A.D. Skinner | Valve Mechanism | ||
| 1,656,573 | Jan. 17, 1928 | A.D. Skinner | Engine Valve Gear | ||
| 1,696,868 | Dec. 25, 1928 | A.D. Skinner | Valve | ||