| 摘要 |
1,159,020. Fourdrinier screens. CHENEY BIGELOW WIRE WORKS Inc. 22 Dec., 1966 [4 March, 1966], No. 57546/66. Addition to 1,064,055. Heading D1K. The papermaking screen of the parent Specification is modified by making the warp wires, which consist of stainless steel coated with copper, of elliptical cross-section. |
