NASA NTRS · 20030004994
Protective Face Mask
Abstract
Mask to protect the physically impaired from injuries to the face and head has been developed by Langley Research Center. It is made of composite materials, usually graphite or boron fibers woven into a matrix. Weighs less than three ounces.
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1981-01-01. Protective Face Mask. https://ntrs.nasa.gov/citations/20030004994
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