Protective helmet with removable suspension
United States Patent 3055011
US Patent References:
Safety hat
- - 2144870

Molded protective hat
- - 2781517

Helmet for electrical workers
- - 2795792

Safety hat
- - 2895136

Protective headgear and method of making it
- - 2931042


Inventors:
Austin, Harry W.
Publication Date:
09/25/1962
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Assignee:
MINE SAFETY APPLIANCES CO
Primary Class:
2/418
International Classes:
A42B3/14; A42B3/04