Number | Name | Date | Kind |
---|---|---|---|
2111168 | Chansor | Mar 1938 | |
3022955 | Riddell | Feb 1962 | |
3327900 | Goda | Jun 1967 | |
3355112 | Shaffer et al. | Nov 1967 | |
3463363 | Zelna | Aug 1969 | |
4347806 | Argazzi | Sep 1982 | |
4353325 | Argazzi | Oct 1982 | |
4456152 | Young et al. | Jun 1984 | |
4756639 | Hoshino | Jul 1988 |
Number | Date | Country |
---|---|---|
2104977 | Mar 1983 | GBX |
Entry |
---|
"Operating Instructions--725 D Diaphragm Valve", 16 pages copyrighted 1983 by Electron Fusion Devices, Inc. |