Number | Date | Country | Kind |
---|---|---|---|
3489/73 | Sep 1973 | IT |
Number | Name | Date | Kind |
---|---|---|---|
979248 | Ayers | Dec 1910 | |
1417703 | Waffenschmidt | May 1922 | |
2369909 | Mestas | Feb 1945 | |
3221544 | Gunkel | Dec 1965 | |
3420222 | Noe et al. | Jan 1969 | |
3479744 | Howland et al. | Nov 1969 |
Entry |
---|
american Machinist, Dec. 2, 1948, p. 105, "Vernier Caliper Measures Radii of Partial Sections," by Clifford Bower. |