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Patents Granted on 1938-03-22 | |||||
Number | Date | Patentee | Title | Type | |
2,111,583 | Mar. 22, 1938 | J. De Mooy | Lubricator | pneumatic tool lubricators | |
2,111,784 | Mar. 22, 1938 | A.M. Johnson | Honing machine | honing machines | |
2,111,871 | Mar. 22, 1938 | M.D. Nissenbaum | Multiuse Tool | special purpose gauges | |
2,112,141 | Mar. 22, 1938 | H.C. Clay | Hydraulic Control for Variable Speed Transmissions | industrial machine speed and direction changing mechanisms | |
2,112,220 | Mar. 22, 1938 | P.S. Russel | Control Device | flow controls |