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All Patents in class 65/300 | |||||
Number | Date | Patentee | Title | Type | |
584,755 | Jun. 15, 1897 | H.J. Colburn | Glass-blowing machine | ||
632,486 | Sep. 05, 1899 | H.J. Colburn | Automatic blast-regulator for glass-blowing furnaces | ||
698,817 | Apr. 29, 1902 | H.J. Colburn | Glass-blowing machine |