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| Patents Granted on 1929-07-23 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,721,561 | Jul. 23, 1929 | C.C. Jensen | Clamp Nail | nails | |
| 1,721,668 | Jul. 23, 1929 | F.A. Parsons | Means for Moving Tool Supports | milling machines | |
| 1,721,740 | Jul. 23, 1929 | D.C. Klausmeyer | Shaft Guard | metalworking machine mechanisms | |
| 1,721,902 | Jul. 23, 1929 | A.F. Froussard | Clutch Mechanism for Presses | metalworking presses | |
| 1,722,116 | Jul. 23, 1929 | S.E. Spofford | Screw holding screwdriver | screw starters | |