Protective helmet
United States Patent 3353187
US Patent References:
Helmet
- - 2351235
Protective helmet with shock absorbing suspension
- - 2879513
Safety helmet
- - 2971195
Ballistic helmet and method of making same
- - 3018210
Visor detent device
- - 3237202
Helmet
- - 2351235
Protective helmet with shock absorbing suspension
- - 2879513
Safety helmet
- - 2971195
Ballistic helmet and method of making same
- - 3018210
Visor detent device
- - 3237202
Inventors:
Lastnik, Abraham L.
Landsberg, Meyer I.
Landsberg, Meyer I.
Publication Date:
11/21/1967
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Assignee:
Lastnik, Abraham L.
Landsberg, Meyer I.
Landsberg, Meyer I.
Primary Class:
International Classes:
A42B3/06; F41H1/08; F41H5/04; A42B3/04; F41H1/00; F41H5/00