| Patents Granted on 1917-04-03 |
Patents 1 -
14
of 14
      |
| Number | Date | Patentee | Title | Type |
| D50,556 | Apr. 03, 1917 | J.H. Hildebrandt | Design for a Hammer Head | hammers |
| 1,221,187 | Apr. 03, 1917 | H.B. Keiper | Knockdown Forge | portable forges |
| 1,221,193 | Apr. 03, 1917 | A.B. Landis | Cutter-head | metal threading machines |
| 1,221,297 | Apr. 03, 1917 | J.A. Dunagan | Combination Clapboard Gage, Square, and Level | clapboard markers |
| 1,221,303 | Apr. 03, 1917 | W.F. Folmer | Gear Cutting Machine | gear making machines |
| 1,221,304 | Apr. 03, 1917 | W.F. Folmer | Reflecting Camera | cameras |
| 1,221,344 | Apr. 03, 1917 | J.A. Marcotte | Mallet Attachment for Hammers | mallets |
| 1,221,421 | Apr. 03, 1917 | G.F. Crosiar | Power Hammer | |
| 1,221,425 | Apr. 03, 1917 | A.J. Dremel | Hose-clamp | hose couplings |
| 1,221,436 | Apr. 03, 1917 | J.W. Gaede | Lever Cap | |
| 1,221,472 | Apr. 03, 1917 | L.S. Rasmusen | External Metal Lap | honing tools |
| 1,221,556 | Apr. 03, 1917 | L.P. McEachron | Tool Holder | sharpening tool holders |
| 1,221,576 | Apr. 03, 1917 | C. Napier | Manufacture of tempered saw-blades | making sawblades |
| 1,221,668 | Apr. 03, 1917 | E. Brunton | Measuring Instrument | indicating calipers |
