Light-tightly packaged roll of light sensitive material

Details Light-tightly packaged roll of light sensitive material Light-tightly packaged roll of light sensitive material

1987-01-13

1988-03-29

Moy, Joseph Man-Fu

Special receptacle or package

For an optical device or element

Binoculars

206400, 206414, 206408, 206416, 220 67, B68D 8538

Patent

active

047337770

ABSTRACT:
A light-tightly packaged roll of light-sensitive material, which comprises an annular end cover for each end face of the roll and a circumferential cover wound around the periphery of the roll and having lateral extensions sealed with their inner surface to the inner surface of radially outwardly projecting margins of the end covers.

REFERENCES:
patent: 3234024 (1966-02-01), Leinonen
patent: 3385470 (1968-05-01), Dorosz et al.
patent: 3444795 (1969-05-01), Nerwin
patent: 3543963 (1970-12-01), Heisler
patent: 4361246 (1982-11-01), Nelson
patent: 4505387 (1985-03-01), Seto
patent: 4640432 (1987-02-01), Tate et al.

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