Number | Name | Date | Kind |
---|---|---|---|
2538521 | Huntting | Jan 1951 | |
3251606 | Oswald et al. | May 1966 | |
3904214 | Manchester | Sep 1975 | |
3963249 | Fink | Jun 1976 |
Number | Date | Country |
---|---|---|
61-125710 | Jun 1986 | JPX |
WO 9629170 | Sep 1996 | WOX |
Entry |
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