Ventilating hatch

Details Ventilating hatch Ventilating hatch

1980-02-06

1982-11-16

Tung, T.

Transportation

Watercraft or hull

Element or attachment

114211, D23151, D1206

Patent

active

D02669234

REFERENCES:
patent: 2550353 (1951-04-01), Hopfinger
patent: 2711126 (1955-06-01), Atkinson
patent: 2839986 (1958-06-01), Herman
patent: 3311043 (1967-03-01), Atkinson
patent: 3779149 (1973-12-01), Bernard
patent: 3919927 (1975-11-01), Bernard
patent: 4189987 (1980-02-01), Amberg
patent: 4193339 (1980-03-01), Giles
patent: 4241645 (1980-12-01), Comte

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