Personal flotation device

Details Personal flotation device Personal flotation device

1993-11-09

1994-09-06

Chin, Kay H.

Transportation

Watercraft or hull

Raft, float, or platform

D21237

Patent

active

D03503267

REFERENCES:
patent: D241730 (1976-10-01), Cacciacarne
patent: 3036544 (1962-05-01), Magri
patent: 3763817 (1973-10-01), Francis
patent: 4214547 (1980-07-01), Hetland
patent: 4946412 (1990-08-01), Maruo et al.

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