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| All Patents in class 249/134 | |||||
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| Number | Date | Patentee | Title | Type | |
| 235,796 | Dec. 21, 1880 | C.B. Morse | Mold and core for casting hollow ingots | foundryman | |
| 948,686 | Feb. 08, 1910 | F.J. Hatch | Device for filling pipe joints | plumber | |