Refill and its pen can write smoothly

Refill and its pen can write smoothly

  • CN 1,188,717 A
  • Filed: 01/24/1997
  • Published: 07/29/1998
  • Est. Priority Date: 01/24/1997
  • Status: Abandoned Application
First Claim
Patent Images

1. pen core that writes smoothly and pen thereof are made up of pen core head tube wall (3) and ball (7) etc., it is characterized in that refill for ball-point pen has the directionality device.

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