Ballpoint pen for teachers or students
The utility model relates to a ballpoint pen for teachers or students. The ballpoint pen comprises a pen holder, a refill, a pressing piece, a spring and a guide cylinder, the pressing piece is positioned at the top of the pen holder; the guide cylinder is fixed in the pen holder and corresponds to...
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Main Authors | , |
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Format | Patent |
Language | Chinese English |
Published |
12.06.2020
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Subjects | |
Online Access | Get full text |
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