Number | Name | Date | Kind |
---|---|---|---|
2764972 | Ryder | Oct 1956 | |
3091223 | Vitale | May 1963 | |
3659560 | Carter | May 1972 | |
3707142 | Kobayashi | Dec 1972 | |
4111004 | Blomberg | Sep 1978 | |
4239953 | Bock | Dec 1980 | |
4641631 | Jatana | Feb 1987 | |
4761532 | Bock | Aug 1988 | |
4940042 | Moore, Jr. et al. | Jul 1990 | |
4995375 | Jackson | Feb 1991 | |
5020512 | Vago et al. | Jun 1991 | |
5174743 | Wellman et al. | Dec 1992 | |
5375651 | Colwell | Dec 1994 | |
5524556 | Rowlette et al. | Jun 1996 | |
5575273 | Moore, Jr. | Nov 1996 | |
5697330 | Yetman et al. | Dec 1997 |
Number | Date | Country |
---|---|---|
55-30306 | Feb 1980 | JPX |
Entry |
---|
"Bock Cglass.RTM. Lined Oil Water Heaters" flyer, Form No. 1008, Rev. 3-96, Bock Water Heaters, Madison, Wisconsin. |