Writing instrument with a ballpoint pen

Details Writing instrument with a ballpoint pen Writing instrument with a ballpoint pen

B - Operations, Transporting

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Patent

CA 1201998

ABSTRACT OF THE DISCLOSURE A writing instrument with a ballpoint pen comprising a metallic fine rod having a plurality of capillary holes for flowing ink from one end thereof through the other end in the interior thereof, a short cylindrical portion extending from one end thereof, and an annular narrowed portion on the peri- pheral edge of the front end of the short cylindrical portion; a hard ball rotatably fitted to and held inside the annular narrowed portion and the short cylindrical portion and being in contact with one end of the metallic fine rod inside the short cylindrical portion; and means for introducing aqueous ink connected to the other end of the metallic fine rod.

430464

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