| 摘要 |
1,134,485. Fishing rods. BERKLEY & CO. Inc. 14 Feb., 1967 [14 Feb., 1966], No. 6892/67. Heading A1A. A tapered fishing rod comprises a hollow glass fibre shaft having a cross-sectional solid area which increases at a predetermined rate from the tip to the butt, the rate being defined by a curve which lies between a parabolic-type and a hyperbolictype curve which have a common vertex at the tip end of the rod and intersect at the butt end. |
