| Patents for Merrick M. Barnes |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 271,401 | Jan. 30, 1883 | M.M. Barnes | Micrometer Indicating Gage | |
| 280,339 | Jul. 03, 1883 | M.M. Barnes | Micrometer Calipers | micrometers |
| 324,804 | Aug. 25, 1885 | M.M. Barnes | Micrometer Caliper | micrometers |
| 325,233 | Sep. 01, 1885 | M.M. Barnes | Micrometer Caliper | micrometers |
| 346,456 | Aug. 03, 1886 | M.M. Barnes | Micrometer Calipers | micrometers |
| 346,705 | Aug. 03, 1886 | M.M. Barnes | Micrometer Calipers | micrometers |
| 346,706 | Aug. 03, 1886 | M.M. Barnes | Micrometer Caliper Handle | micrometers |
