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| All Patents in class 65/227 | |||||
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| Number | Date | Patentee | Title | Type | |
| 620,642 | Mar. 07, 1899 | I.W. Colburn | Glass-working machine | ||
| 621,794 | Mar. 28, 1899 | I.W. Colburn | Glass-working machine | ||
| 621,795 | Mar. 28, 1899 | I.W. Colburn | Glass-working machine | ||
| 754,426 | Mar. 15, 1904 | I.W. Colburn | Glass-working machine | ||