Hat having air chamber

Apparel and haberdashery – Footwear – Athletic-type

Patent

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D0203

Patent

active

D02472660

REFERENCES:
patent: 606982 (1898-07-01), Smyth
patent: 2673349 (1954-03-01), Key
patent: 2696007 (1954-12-01), Larkin et al.
patent: 3072916 (1963-01-01), Henderson

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