Number | Name | Date | Kind |
---|---|---|---|
3876322 | Deason | Apr 1975 | A |
4490067 | Dahowski | Dec 1984 | A |
4621939 | Thomann et al. | Nov 1986 | A |
4815888 | Stegmeier | Mar 1989 | A |
5340234 | Rossi et al. | Aug 1994 | A |
D377389 | Phillips et al. | Jan 1997 | S |
5803662 | Gunter | Sep 1998 | A |
6000881 | Becker et al. | Dec 1999 | A |
Entry |
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Quaker Plastic Corp.; product catalog, p. 11 (no date). |
Mortex Mfg. Co., Inc.; Drain Rite brand promotional literature (no date). |
D.F.C. Company; Deck-O-Drain Mark III(R) promotional literature (no date). |
NDS; Micro Channel brand promotional literature. |