| 摘要 |
650,804. Reservoir pens. COMPANIA URUGUAYA DE FOMENTO INDUSTRIAL SOC. ANON. Feb. 12, 1946, No. 28190/47. Divided out of 650,754. Drawings to Specification. [Class 146 (iii)] A reservoir pen e.g. a ball-point pen in which the ink flows to the point through a small-bore feed-duct or ducts is provided with a filter for arresting the passage of air bubbles which might obstruct the ink flow in the duct. The embodiments described are included in Specification 650,754. Specification 602,101 also is referred to. Reference has been directed by the Comptroller to Specification 564,173. |
