Number | Name | Date | Kind |
---|---|---|---|
755804 | Smith | Mar 1904 | |
2397216 | Stellin | Mar 1946 | |
2770998 | Schwartz | Nov 1956 | |
3213719 | Kloack | Oct 1965 | |
4258596 | Bisbing | Mar 1981 |
Number | Date | Country |
---|---|---|
2608892 | Aug 1977 | DEX |
1234436 | Jun 1971 | GBX |
Entry |
---|
Rothbart, Mechanical Design and Systems Handbook., McGraw-Hill (1964); pp. 27-15. |