Number | Name | Date | Kind |
---|---|---|---|
3935739 | Ells | Feb 1976 | A |
4020488 | Martin et al. | Apr 1977 | A |
4224606 | Bartles | Sep 1980 | A |
4482891 | Spencer | Nov 1984 | A |
4646569 | Cosser | Mar 1987 | A |
4692591 | Cooley et al. | Sep 1987 | A |
4773274 | Kobayashi et al. | Sep 1988 | A |
4792660 | Cooley et al. | Dec 1988 | A |
5271280 | Nissen | Dec 1993 | A |
5519639 | Jordan et al. | May 1996 | A |
5565851 | Richards et al. | Oct 1996 | A |
5801307 | Netzer | Sep 1998 | A |
6118190 | Richards | Sep 2000 | A |
Entry |
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PG-60 Design and Application Requirements for Miscellaneous Pipe, Valves, and Fittings. |