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| US5077836 | 16 May 1990 | 7 Ene 1992 | Bilsom AB | Headgear | | US5548841 | 25 Jul 1994 | 27 Ago 1996 | MFD Enterprises, Inc. | Headband magnifier | | US5608917 | 7 Mar 1996 | 11 Mar 1997 | OP-D-OP, Inc. | Ergonomic head band apparatus | | US5727251 | 24 Jul 1996 | 17 Mar 1998 | MFD Enterprises, Inc. | Headband magnifier | | US6367085 | 21 Dic 1998 | 9 Abr 2002 | 3M Innovative Properties Company | Head suspension for an air supplied hood system | | US6595635 | 12 Oct 2001 | 22 Jul 2003 | MagEyes, Inc. | Apparatus for positioning a magnifying lens | | US6751811 | 22 May 2003 | 22 Jun 2004 | | Elastomeric tensioning system for head and ear mounted eyewear | | US6817711 | 20 May 2003 | 16 Nov 2004 | Mageyes, Inc. | Apparatus for positioning a lens | | USD359060 | 29 Oct 1993 | 6 Jun 1995 | MFD Enterprises, Inc. | Headband magnifier |
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