Number | Name | Date | Kind |
---|---|---|---|
RE27549 | Flachbarth et al. | Jan 1973 | |
3334457 | Hudson et al. | Aug 1967 | |
3873136 | Curry | Mar 1975 | |
4272643 | Carroll et al. | Jun 1981 | |
4289370 | Storck | Sep 1981 | |
4323723 | Fork et al. | Apr 1982 | |
4336416 | Goodsell | Jun 1982 | |
4387949 | Haitmanek | Jun 1983 | |
4477694 | Kohaut | Oct 1984 | |
4496790 | Spencer | Jan 1985 | |
4507900 | Landis | Apr 1985 | |
5034567 | Mohr | Jul 1991 | |
5057647 | Bogden et al. | Oct 1991 |
Number | Date | Country |
---|---|---|
993450 | Oct 1951 | FRX |
Entry |
---|
"Walkerduct Service Fittings" catalog SF582R (undated). |