The present invention provides a portable protective system for protecting a wearer, and for protecting the environment about the wearer. The protective system includes a face shield coupled with a head cradle for supporting the face shield on the wearer's head. The face shield and a wearer's face substantially...http://www.google.fr/patents/US6250299?utm_source=gb-gplus-shareBrevet US6250299 - Protective system for face and respiratory protection
Protective system for face and respiratory protection
