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| Patents for Ernest W. Duston | |||||
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| Picture | Number | Date | Patentee | Title | |
| 1,004,247 | Sep. 26, 1911 | E.W. Duston | Ejecting mechanism for heading-machines | ||
| 1,015,382 | Jan. 23, 1912 | E.W. Duston | Cutting-off and carrying mechanism for heading-machines | ||
| 1,026,082 | May 14, 1912 | E.W. Duston | Heading mechanism | ||
| 1,026,083 | May 14, 1912 | E.W. Duston | Machine for feeding headed blanks | ||
| 1,346,812 | Jul. 20, 1920 | E.W. Duston | Collapsible spool | ||
 | 1,558,079 | Oct. 20, 1925 | E.W. Duston, R.S. Crosby | Feeder for automatic metal-working machines | |