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All Patents of Type: glass grinding machines | |||||
Number | Date | Patentee | Title | Type | |
364,353 | Jun. 07, 1887 | R. Kampfe | Machinery for Grinding Cutlery | glass grinding machines | |
445,349 | Jan. 27, 1891 | W. Bauch | Lens Grinding Machine | glass grinding machines | |
911,210 | Feb. 02, 1909 | C.M. Conradson | Grinding Machine | glass grinding machines |