Number | Name | Date | Kind |
---|---|---|---|
2150497 | Fernberg | Mar 1939 | |
3003215 | Fernberg | Oct 1961 | |
4004796 | Macke | Jan 1977 | |
4127263 | Wenthe | Nov 1978 | |
4169674 | Russel | Oct 1979 | |
4243316 | Gustafson | Jan 1981 | |
4245774 | Heinz | Jan 1981 | |
4589648 | Hancock | May 1986 | |
4596385 | Silverberg | Jun 1986 | |
5052675 | Shehata | Oct 1991 | |
5295675 | Hain | Mar 1994 | |
5429348 | Martin | Jul 1995 |
Number | Date | Country |
---|---|---|
426699 | Apr 1935 | GBX |
Entry |
---|
Hanzlik, Variable Corrugation Vacuum Corrugating Sheet Feeder, Xerox Disclosure Journal, vol. 6 No. 4, Jul./Aug. 1981, page 175. |