AIRMEN'S HELMETS
United States Patent 3438060
US Patent References:
/0622677.html
- - 0622677

Hat
- - 1635456

Life saving mask
- - 1945919

Detachable sweatband
- - 2411831

Browband
- - 2628361


Inventors:
Lobelle, Marcel J. O.
Gregory, John
Publication Date:
04/15/1969
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Assignee:
ML AVIATION CO LTD
Primary Class:
2/6.300
Other Classes:
128/201.230
International Classes:
A62B18/04; A62B18/00; A42B3/00; A62B18/04
US Patent References:
2935985Airtight helmet
3149632Head covering assembly with face and visor seals
3295522Wearable cooling respiratory device




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