Number | Name | Date | Kind |
---|---|---|---|
4567743 | Cudini | Feb 1986 | |
4744237 | Cudini | May 1988 | |
4829803 | Cudini | May 1989 | |
5070717 | Boyd et al. | Dec 1991 |
Number | Date | Country |
---|---|---|
0816688 | Oct 1951 | DEX |
0285713 | Dec 1991 | JPX |
Entry |
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E. I. Isachenkov, D. Sc., "Molding By Rubber And Liquid", Date 1967. |