Number | Name | Date | Kind |
---|---|---|---|
D300129 | Whitley, II | Mar 1989 | |
D312442 | Whitley, II | Nov 1990 | |
1189764 | Whitman | Jul 1916 | |
1585512 | Roades | May 1926 | |
1952484 | Allee | Mar 1934 | |
2159178 | Rike et al. | May 1939 | |
2388395 | Duggan | Nov 1945 | |
2786091 | Spellier | Mar 1957 | |
3067908 | Graham | Dec 1962 | |
3083862 | Bowden | Apr 1963 | |
3385468 | Fleming et al. | May 1968 | |
3477611 | Niles | Nov 1969 | |
4168012 | Hawkinson | Sep 1979 | |
4341322 | Heinke | Jul 1982 | |
4690293 | Uranishi et al. | Sep 1987 | |
4722454 | Fischer | Feb 1988 | |
4971219 | Dombeck et al. | Nov 1990 | |
5000339 | Wheat et al. | Mar 1991 | |
5186221 | Ellis | Feb 1993 | |
5234122 | Cherng | Aug 1993 | |
5275213 | Perkins | Jan 1994 | |
5327946 | Perkins | Jul 1994 | |
5375633 | Bucci | Dec 1994 |
Number | Date | Country |
---|---|---|
551131 | Jan 1958 | CAX |
612950 | Nov 1948 | GBX |
836075 | Jun 1960 | GBX |
915862 | Jan 1963 | GBX |
1175875 | Jan 1970 | GBX |
1595030 | Aug 1981 | GBX |
Entry |
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Attwood 1992-93 Product Catalog, pp. 75, 78-83 & cover. |
Advertisement entitled "New from . . . Perko, Inc., Combination Gas Fill & Tank Vent--FIG. 1319" by Perko, Inc. of Miami, Fla., Feb. 1993. |