Number | Date | Country | Kind |
---|---|---|---|
90-0190 | Jan 1990 | SEX |
Number | Name | Date | Kind |
---|---|---|---|
D231615 | Nygard | May 1974 | |
380500 | Linscott | Apr 1888 | |
398968 | Jones et al. | Mar 1889 | |
404194 | Holm | May 1889 | |
2905073 | Aveni | Sep 1959 | |
3082680 | Nevin et al. | Mar 1963 | |
3520115 | Bowen | Jul 1970 | |
4584929 | Jarmyr et al. | Apr 1986 |
Number | Date | Country |
---|---|---|
143538 | Sep 1981 | DKX |
2334432 | Jul 1977 | FRX |
8702139 | May 1987 | SEX |
Entry |
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Optic-Aire Systems, Inc. Adv. Brochure, .COPYRGT.1968, back cover, fume hood, upper left side of page. |
Swedish Brochure "Bahco Toronado Platsutsugbho", 1983. |
Soviet Publication #SU-916,913 "Soviet Inventions Illustrated", 1983. |