Safety helmet with ear muffs for hearing protection and fastenin

Details Safety helmet with ear muffs for hearing protection and fastenin Safety helmet with ear muffs for hearing protection and fastenin

1975-10-31

1977-05-31

Feifer, Melvin B.

Apparel and haberdashery

Footwear

Athletic-type

D0203

Patent

active

D02444917

REFERENCES:
patent: 3197785 (1965-08-01), Simpson et al.
patent: 3273162 (1966-09-01), Andrews
patent: 3461463 (1969-08-01), Beguin

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