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| Patents for Harry Haist | |||||
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| Picture | Number | Date | Patentee | Title | |
 | GB-713,632 | Aug. 18, 1954 | H. Haist | Improvements in or relating to change speed gear controls | |
 | GB-743,174 | Jan. 11, 1956 | H. Haist | Improvements in or relating to fastening means for the street plates of endless tracks for vehicles | |
 | GB-744,741 | Feb. 15, 1956 | H. Haist | Improvements in or relating to transmission gears of endless track vehicles | |