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| All Patents of Type: pin punches | |||||
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| Number | Date | Patentee | Title | Type | |
| 430,299 | Jun. 17, 1890 | J.R. Rand | Center Boring and Marking Tool | twist drill bits | |
| 824,867 | Jul. 03, 1906 | W. Houghton | Combined Marking-Peg and Center-Punch | pin punches | |
| 1,003,043 | Sep. 12, 1911 | A.D. Goughnour | Center Punch Gage | pin punches | |
| D44,834 | Nov. 04, 1913 | E.A. Bardwell | Nail Set | pin punches | |
| 1,273,441 | Jul. 23, 1918 | E.A. Bardwell | Method or Process of Nurling | pin punches | |