Number | Name | Date | Kind |
---|---|---|---|
896447 | Hall et al. | Aug 1908 | A |
1013541 | Fleuss et al. | Jan 1912 | A |
1625419 | McCaa | Apr 1927 | A |
1925764 | Le Duc | Sep 1933 | A |
2111995 | Schwartz | Mar 1938 | A |
2284949 | Cover | Jun 1942 | A |
2435721 | Lehmann | Feb 1948 | A |
2744525 | Whipple | May 1956 | A |
2898908 | Sovinsky | Aug 1959 | A |
2983271 | Beck | May 1961 | A |
3473165 | Gran et al. | Oct 1969 | A |
3550588 | Stahl | Dec 1970 | A |
3603313 | Arblaster | Sep 1971 | A |
3971369 | Aspelin et al. | Jul 1976 | A |
4141703 | Mulchi | Feb 1979 | A |
4215682 | Kubik et al. | Aug 1980 | A |
4231364 | Speshyock | Nov 1980 | A |
4414973 | Matheson et al. | Nov 1983 | A |
4454881 | Huber et al. | Jun 1984 | A |
4537189 | Vicenzi | Aug 1985 | A |
4549543 | Moon | Oct 1985 | A |
4558708 | Labuda et al. | Dec 1985 | A |
4598704 | Bordoni et al. | Jul 1986 | A |
4763645 | Kapp | Aug 1988 | A |
4765325 | Crutchfield | Aug 1988 | A |
4774942 | Moellers | Oct 1988 | A |
4813948 | Insley | Mar 1989 | A |
4827924 | Japuntich et al. | May 1989 | A |
4850346 | Michel et al. | Jul 1989 | A |
4873972 | Magidson et al. | Oct 1989 | A |
4874399 | Reed et al. | Oct 1989 | A |
4901716 | Stackhouse et al. | Feb 1990 | A |
4921645 | Insley | May 1990 | A |
4934362 | Braun | Jun 1990 | A |
5016625 | Hsu et al. | May 1991 | A |
5035240 | Braun et al. | Jul 1991 | A |
5036840 | Wallace | Aug 1991 | A |
5062421 | Burns et al. | Nov 1991 | A |
5086768 | Niemeyer | Feb 1992 | A |
5091102 | Sheridan | Feb 1992 | A |
5117821 | White | Jun 1992 | A |
5325892 | Japuntich et al. | Jul 1994 | A |
5357947 | Adler | Oct 1994 | A |
5364615 | Debs et al. | Nov 1994 | A |
5366726 | Debs et al. | Nov 1994 | A |
5374458 | Burgio | Dec 1994 | A |
5479920 | Piper et al. | Jan 1996 | A |
5505197 | Scholey | Apr 1996 | A |
5509436 | Japuntich et al. | Apr 1996 | A |
5560354 | Berthon-Jones et al. | Oct 1996 | A |
5595173 | Dodd, Jr. | Jan 1997 | A |
5597645 | Pike et al. | Jan 1997 | A |
5641555 | Berrigan et al. | Jun 1997 | A |
5643507 | Berrigan et al. | Jul 1997 | A |
5657752 | Landis et al. | Aug 1997 | A |
5658640 | Berrigan et al. | Aug 1997 | A |
5658641 | Berrigan et al. | Aug 1997 | A |
5676133 | Hickle et al. | Oct 1997 | A |
5690949 | Weimer et al. | Nov 1997 | A |
5735265 | Flynn | Apr 1998 | A |
5772884 | Tanaka et al. | Jun 1998 | A |
5834386 | Cohen | Nov 1998 | A |
5941244 | Yamazaki et al. | Aug 1999 | A |
5983894 | Fukunaga et al. | Nov 1999 | A |
6003511 | Fukunaga et al. | Dec 1999 | A |
6014971 | Danisch et al. | Jan 2000 | A |
6250299 | Danisch et al. | Jun 2001 | B1 |
6279572 | Danisch et al. | Aug 2001 | B1 |
6460539 | Japuntich et al. | Oct 2002 | B1 |
Number | Date | Country |
---|---|---|
666367 | Oct 1938 | DE |
0281650 | Sep 1988 | EP |
0697225 | Feb 1996 | EP |
746196 | May 1933 | FR |
857420 | Sep 1940 | FR |
2233905 | Jan 1991 | GB |
Entry |
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Webster's New International Dictionary of the English Language, 2 ed. G. & C. Merriam Co., Apr. 1937.* |
Australian Standard® Surgical Face Masks (AS 4381-1996). |
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