Writing instrument

Details Writing instrument Writing instrument

B - Operations, Transporting

43

K

207/63

B43K 7/02 (2006.01) B43K 7/10 (2006.01)

Patent

CA 1218031

ABSTRACT A ball-point writing instrument in which dislodging of the rotating ball as a result of accidental droppage on a hard surface is prevented by employing an ink reservoir construction designed to prevent propogation of a travelling pressure step in the column of ink above the rotating ball.

466047

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