| Patents for Frank Spalding |
Patents 1 -
10
of 19
      |
| Picture | Number | Date | Patentee | Title |
 | 495,915 | Apr. 18, 1893 | F. Spalding | Micrometer Gage |
 | 557,445 | Mar. 31, 1896 | F. Spalding | Micrometer Gage |
 | 591,363 | Oct. 05, 1897 | F. Spalding | Calipers |
 | 597,335 | Jan. 11, 1898 | F. Spalding | Micrometer Depth Gage |
 | 626,876 | Jun. 13, 1899 | E.C. Thurston, F. Spalding | Micrometer Calipers |
 | 645,838 | Mar. 20, 1900 | F. Spalding | Micrometer Gage |
 | 664,978 | Jan. 01, 1901 | F. Spalding | Micrometer Gage |
 | 676,637 | Jun. 18, 1901 | F. Spalding | Micrometer Caliper |
 | 729,970 | Jun. 02, 1903 | F. Spalding | Micrometer Calipers |
 | 761,328 | May 31, 1904 | F. Spalding | Micrometer Calipers |
