Mechanical pencil having an automatic lead extending mechanism

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United States of America Patent

PATENT NO 4979839
SERIAL NO

07318300

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Abstract

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A mechanical pencil having an automatic lead extending mechanism which has a radially displaceable member disposed on an entire circumference of the pencil body. The lead protrudes from a tip end of the pencil body when the radially displaceable member is radially displaced.

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Patent Owner(s)

Patent OwnerAddress
ANCOS CO LTD1-19 NISHITEMMA 5-CHOME KITA-KU OSAKA-SHI OSAKA

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hashimoto, Yasuyuki Hyogo, JP 63 539
Yamashita, Haruo Hyogo, JP 125 2834

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