| Patents for Park Benjamin |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 392,385 | Nov. 06, 1888 | E. Weston | Electroplated coil for electrical measuring-instruments | electrical measuring apparatus |
| 392,386 | Nov. 06, 1888 | E. Weston | Electrical Measuring Apparatus | electrical measuring apparatus |
| 392,387 | Nov. 06, 1888 | E. Weston | Electrical Measuring Apparatus | electrical measuring apparatus |
| 392,476 | Nov. 06, 1888 | E. Weston | Reflecting-galvanometer | electrical measuring apparatus |
| 392,477 | Nov. 06, 1888 | E. Weston | Galvanometer | electrical measuring apparatus |
| 392,478 | Nov. 06, 1888 | E. Weston | Galvanometer | electrical measuring apparatus |
