Pneumatic liner for protective headgear

Details Pneumatic liner for protective headgear Pneumatic liner for protective headgear

1980-09-11

1982-12-21

Stearman, Joel

Apparel and haberdashery

Footwear

Athletic-type

D0203

Patent

active

D02672871

REFERENCES:
patent: 3153792 (1964-10-01), Marietta
patent: 3609764 (1971-10-01), Morgan
patent: 3849801 (1974-11-01), Holt et al.
patent: 3866243 (1975-02-01), Morgan
"Riddell's Micro-Fit Helmet", Flyer, front cover, Helmet facing front.

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