| Number | Name | Date | Kind |
|---|---|---|---|
| D199075 | Kudlaty | Sep 1964 | S |
| D199139 | Kudlaty | Sep 1964 | S |
| 4904382 | Tomsen | Feb 1990 | A |
| D315013 | Petrucci et al. | Feb 1991 | S |
| D317040 | Petrucci et al. | May 1991 | S |
| 5486288 | Stanford | Jan 1996 | A |
| 5507945 | Hansen | Apr 1996 | A |
| 6048455 | Janik | Apr 2000 | A |
| Entry |
|---|
| U.S. Filter engineering drawings; Drwg. No. US600, Sheet 1 of 6, sheet 2 of 6, sheet 4 of 6, sheet 5 of 6 and sheet 6 of 6 2001. |