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| All Patents in class 188/322.22 | |||||
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| Number | Date | Patentee | Title | Type | |
| 782,957 | Feb. 21, 1905 | H.J. Fischer | Dash Pot | dash pots | |
| 4,835,871 | Jun. 06, 1989 | V.I. Pesikov | Counterweight for Coordinate Measuring Machine | coordinate measuring machines | |