Number | Name | Date | Kind |
---|---|---|---|
2141462 | Doering | Dec 1938 | |
2749722 | Knowles | Jun 1956 | |
2900804 | Rising | Aug 1959 | |
3048987 | Wentworth | Aug 1962 | |
3089316 | Robbins | May 1963 | |
3262217 | Brown | Jul 1966 | |
3263339 | Brown | Aug 1966 | |
4138768 | Roth | Feb 1979 | |
4192899 | Roth | Mar 1980 | |
4294860 | Roth | Oct 1981 | |
4337627 | Roth | Jul 1982 | |
4349575 | Roth | Sep 1982 | |
4377936 | Gram | Mar 1983 | |
4446159 | Roth | May 1984 | |
4468281 | Bender | Aug 1984 | |
4539824 | Kuraoka | Sep 1985 |
Entry |
---|
Two page brochure entitled "Freeze Wheel System" (undated). |
Two pages of development drawings dated Nov. 9, 1989 and Nov. 10, 1989. |
One page drawing dated Jan. 15, 1992 and entitled "Cross Flow Drum Ass'y". |