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| All Patents in class 119/14.44 | |||||
| Number | Date | Patentee | Title | Type | |
| 1,405,166 | Jan. 31, 1922 | W.A. Shippert | Milking machine | ||
| 1,459,420 | Jun. 19, 1923 | W.A. Shippert | Milking machine | ||
| 1,935,870 | Nov. 21, 1933 | A. Blatz, Jr. | Milking machine | ||