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| Patents Granted on 1930-10-14 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,778,452 | Oct. 14, 1930 | H. Ernst | Grinding Machinery | grinding machines | |
| 1,778,576 | Oct. 14, 1930 | P.H. Walker | Clamping element for vises and similar articles | bench vises | |
| 1,778,579 | Oct. 14, 1930 | E.G. Bartel | Brake band drilling attachment | brake maintenance | |