Number | Name | Date | Kind |
---|---|---|---|
3930998 | Knopp et al. | Jan 1976 | |
4894162 | Cournoyer et al. | Jan 1990 |
Number | Date | Country |
---|---|---|
61133197 | Jun 1986 | JPX |
6-206088 | Jul 1994 | JPX |
9-010791 | Jan 1997 | JPX |
9-099298 | Apr 1997 | JPX |
9-276887 | Oct 1997 | JPX |
10 192889 | Jul 1998 | JPX |
11 000690 | Jan 1999 | JPX |
WO 9833745 | Aug 1998 | WOX |
Entry |
---|
Sewage Service Project--Design Guide and Explanation, vol. 2, pp. 218-241 (1994). |