Number | Date | Country | Kind |
---|---|---|---|
184339 | Oct 1980 | MXX |
Number | Name | Date | Kind |
---|---|---|---|
2822910 | Wachsmuth | Feb 1958 | |
3184031 | Dunlap | May 1965 | |
4067434 | Mumford | Jan 1978 | |
4290517 | Haffeskamp | Sep 1981 |
Entry |
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Brown, Mechanical Movements, 17th ed., Brown & Seuard, N.Y., N.Y., 1893. |