Protective helmet

A protective helmet. The protective helmet includes an outer layer and an inner layer, each formed of a hard material. The outer layer and the inner layer each further include a concave interior surface and a convex exterior surface. A flexible connector connects the concave interior surface of the...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	Dewoolfson, Jr., Bruce H, Valentino, Sr., Joseph A
Format:	Patent
Sprache:	eng
Schlagworte:	HATS HEAD COVERINGS HEADWEAR HUMAN NECESSITIES MANUFACTURING OR TRIMMING HATS OR OTHER HEAD COVERINGS
Online-Zugang:	Volltext bestellen
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