Number | Name | Date | Kind |
---|---|---|---|
2351160 | Stone et al. | Jun 1944 | |
3522187 | Kraus | Jul 1970 | |
3850835 | Marantz et al. | Nov 1974 | |
4070300 | Moroni et al. | Jan 1978 | |
4765908 | Monick et al. | Aug 1988 | |
5443636 | Montgomery | Aug 1995 |
Entry |
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"Treating Process Water" The Concrete Producer, Yelton, Jun. 1997, p. 3. |
Safety Data Sheet, Mel Chemicals, Apr. 1995, p. 4. |