WRITING IMPLEMENT
The present invention is provided with an axial cylinder (1) extending in an axial direction along a center axis; and a writing member disposed inside the axial cylinder (1). The axial cylinder (1) has fiber-like protrusions (6) protruding radially outward from the outer circumferential surface of t...
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Format: | Patent |
Sprache: | eng ; fre ; jpn |
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