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| All Patents in class 138/177 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 97,953 | Dec. 14, 1869 | C.B. Morse | Improvement in cast-steel tube or ingot | ||
| 233,634 | Oct. 26, 1880 | C.B. Morse | Axle for railroad-cars | ||
 | 3,572,396 | Mar. 23, 1971 | H.R. Hoffman, H.L. Sidenstick | Rubber band stack and method and apparatus for its manufacture | |