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| Quick search: | Patent number: | Patent Date: |
| All Patents in class 254/301 | |||||
| Picture | Number | Date | Patentee | Title | |
| 652,798 | Jul. 03, 1900 | S. Mattson | Winch-head | ||
| 819,226 | May 01, 1906 | C.O. Heggem | Traction Engine | ||