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Patents Granted on 1961-03-07 | |||||
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Number | Date | Patentee | Title | Type | |
2,973,674 | Mar. 07, 1961 | J.A. Hladik | Drilling fixture for spherical objects | ||
2,973,727 | Mar. 07, 1961 | R.D. Northcote | Pulverised Fuel Burner | stationary boilers | |
2,974,080 | Mar. 07, 1961 | W. Trible | Process of Construction of Machine Tools | milling machines |