Sealed letter producing device and envelope sheet

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United States of America Patent

PATENT NO 9833965
SERIAL NO

13881485

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Importance

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Abstract

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In a sealed letter producing device which folds and seals, with a content, an envelope sheet on which pressure-sensitive adhesives are provided, sealing with pressure rollers smaller than in conventional rollers is achieved.

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Patent Owner(s)

Patent OwnerAddress
RISO KAGAKU CORPORATION5-34-7 SHIBA MINATO-KU TOKYO 108-8385

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Katada, Yasuhiro Tokyo, JP 4 2
Wakatabi, Tadayuki Tokyo, JP 16 66

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