Number | Name | Date | Kind |
---|---|---|---|
2999498 | Matheson | Sep 1961 | A |
D271246 | Matheson et al. | Nov 1983 | S |
4414973 | Matheson et al. | Nov 1983 | A |
4549543 | Moon | Oct 1985 | A |
4630604 | Montesi | Dec 1986 | A |
4850346 | Michel et al. | Jul 1989 | A |
4934362 | Braun | Jun 1990 | A |
4958633 | Angell | Sep 1990 | A |
4960121 | Nelson et al. | Oct 1990 | A |
4974586 | Wandel et al. | Dec 1990 | A |
4981134 | Courtney | Jan 1991 | A |
5062421 | Burns et al. | Nov 1991 | A |
5325892 | Japuntich et al. | Jul 1994 | A |
5592937 | Freund | Jan 1997 | A |
D382341 | Freund | Aug 1997 | S |
D413166 | Snow et al. | Aug 1999 | S |
6047698 | Magidson et al. | Apr 2000 | A |
6062221 | Brostrom et al. | May 2000 | A |
6345620 | Salapow et al. | Feb 2002 | B2 |
Number | Date | Country |
---|---|---|
0 252 890 | Jan 1988 | EP |
0 252 891 | Jan 1988 | EP |
Entry |
---|
3M™ Half and Full Facepiece Respirators product literature 70-0710-9082-6 (Jan. 2002). |