Writing instrument operated by a finger at a holding position
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Aug 1, 2000
Grant Date -
N/A
app pub date -
Jan 30, 1991
filing date -
Jan 30, 1990
priority date (Note) -
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Abstract
A writing instrument operated by a finger at a holding position comprising a hollow body for containing at least one refill, in which each refill is always forced toward a retracted position in the hollow body, and is moved between the writing position and a resting position by means of a cam mechanism which is operated by an actuating knob provided at a position near the portion of the hollow body to be grasped by a user's finger-tips.
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