| 摘要 |
1,134,680. Ball point pens. SUMITOMO ELECTRIC INDUSTRIES Ltd. 12 Nov., 1965 [28 Nov., 1964], No. 32731/68. Divided out of 1,133,995. Heading B6P. [Also in Division C7] A ball for a ballpoint pen is made of a composition consisting of Cr 3 C 2 with or without WC bound by Ni or one or more of Cr 3 C 2 , TuC, NbC, WC and TiC bound by Ni-Cu, Ni-Co-Cr or Ni-Cr. The holder may be made of stainless steel, brass or plastics. |
