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| All Patents in class 221/301 | |||||
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| Number | Date | Patentee | Title | Type | |
| 309,103 | Dec. 09, 1884 | F.F. Schofield | Log-loader | woodworking machine material handling | |
| 320,217 | Jun. 16, 1885 | J. Campbell | Log-loader | sawmill accessories | |
| 649,903 | May 22, 1900 | J.P. Brophy | Automatic Lathe Attachment | metal lathe accessories and attachments | |