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| All Patents in class 221/178 | |||||
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| Number | Date | Patentee | Title | Type | |
| 166,490 | Aug. 10, 1875 | S.L. Worsley | Machine for Tapping Nuts | nut or bolt making machines | |
| 221,844 | Nov. 18, 1879 | H. Messer | Improvement in nail-feeding attachments for box-nailing machines | nailing machines | |