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| All Patents in class 277/345 | |||||
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| Number | Date | Patentee | Title | Type | |
| 25,955 | Nov. 01, 1859 | J. Cumming | Stuffing Box | steam engine stuffing boxes | |
| 1,938,786 | Dec. 12, 1933 | E.D. Vancil | Spring Operated Wiper | metalworking machine mechanisms | |