Inflatable helmet

Details Inflatable helmet Inflatable helmet

1990-09-14

1993-08-24

McInroy, Ruth

Apparel and haberdashery

Footwear

Athletic-type

D29 12

Patent

active

D03385469

REFERENCES:
patent: D80880 (1930-04-01), Dickman
patent: D318747 (1991-07-01), Barker
patent: 1839657 (1932-01-01), Duchek
patent: 2664567 (1954-01-01), Nichols
patent: 3600713 (1971-08-01), Holt
patent: 4222122 (1980-09-01), Toms
patent: 4300242 (1981-11-01), Nava et al.

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