Number | Name | Date | Kind |
---|---|---|---|
651962 | Boghean | Jun 1900 | |
1399034 | Taplin | Dec 1921 | |
2071215 | Petersen | Feb 1937 | |
2699163 | Engstrom | Jan 1955 | |
2754817 | Nemeth | Jul 1956 | |
2780222 | Polzin et al. | Feb 1957 | |
2853998 | Emerson | Sep 1958 | |
2899955 | Huxley | Aug 1959 | |
3042024 | Mendelson | Jul 1962 | |
3120228 | Huxley | Feb 1964 | |
3368550 | Glascock | Feb 1968 | |
3374783 | Hurvitz | Mar 1968 | |
3425409 | Isaacson et al. | Feb 1969 | |
3461860 | Barkalow | Aug 1969 | |
3481327 | Drennen | Dec 1969 | |
3491751 | Wolfing | Jan 1970 | |
3503388 | Cook | Mar 1970 | |
3777744 | Fryfogle et al. | Dec 1973 | |
3782371 | Derouineau | Jan 1974 | |
4060079 | Reinhold, Jr. | Nov 1977 | |
4326507 | Barkalow | Apr 1982 | |
4338924 | Bloom | Jul 1982 | |
4397306 | Weisfeldt et al. | Aug 1983 | |
4424806 | Newman et al. | Jan 1984 | |
4770164 | Lach et al. | Sep 1988 | |
4928674 | Halperin et al. | May 1990 | |
5167602 | Lehktman | Dec 1992 | |
5287846 | Capjon et al. | Feb 1994 | |
5295481 | Geeham | Mar 1994 | |
5407418 | Szpur | Apr 1995 | |
5484391 | Buckman, Jr. et al. | Jan 1996 | |
5490820 | Schock et al. | Feb 1996 |
Number | Date | Country |
---|---|---|
624118 | Jan 1936 | DEX |
Entry |
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NASA Tech Briefs--MSC--22148. |