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| Patents for Clifford H. Kain | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,016,931 | Oct. 08, 1935 | C.C. Richard | Hydraulic Mechanism for Determining the Path of Movement of a Tool or Other Element | hydraulic apparatus | |
| 2,030,022 | Feb. 04, 1936 | C.H. Kain | Hydraulically Controlled Duplicating Machine | hydraulic apparatus | |
| RE21,544 | Aug. 27, 1940 | C.C. Richard | Hydraulic Mechanism for Determining the Path of Movement of a Tool or Other Element | hydraulic apparatus | |