Number | Date | Country | Kind |
---|---|---|---|
1-18681 | May 1989 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
D186435 | Wilson | Oct 1959 | |
D299392 | Faust | Nov 1973 | |
2230923 | Barry | Feb 1941 | |
2467604 | Tinnerman et al. | Apr 1949 | |
2869098 | Sauer | Jan 1959 | |
2932000 | Buchanan | Apr 1960 | |
4186987 | Pearce, Jr. et al. | Feb 1980 | |
4940423 | Aihara et al. | Jul 1990 |
Number | Date | Country |
---|---|---|
2915247 | Oct 1980 | DEX |
0807721 | Jan 1959 | GBX |
Entry |
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Spring clip 19 on p. 5303 of IBM Tech. Disclosure Bulletin vol. 23 No. 12, 5-81. |