Number | Name | Date | Kind |
---|---|---|---|
2683477 | Altman | Jun 1954 | |
2688993 | White | Sep 1954 | |
2835294 | Rigney | May 1958 | |
3434517 | Durand, Jr. et al. | Mar 1969 | |
3563289 | Altman | Feb 1971 | |
4252056 | Altman | Feb 1991 | |
4337693 | Dandrea | Jul 1982 | |
5390590 | Mendenhall | Feb 1995 |
Number | Date | Country |
---|---|---|
344836 | Aug 1972 | SUX |
1331478 | Aug 1987 | SUX |
9313678 | Jul 1993 | WOX |
Entry |
---|
Derwent Abstract No. 73-53349U/37 abstracting Soviet Union Patent Publication 367845. |
Derwent Abstract No. 77-53612Y/30 abstracting Soviet Union Patent Publication 540622. |