| 摘要 |
1,065,932. Toy building elements. LEGO SYSTEMS A.S. Feb. 14, 1966 [March 1, 1965], No. 6453/66. Heading A6S. Toy building elements comprise hollow parallel sided blocks adapted to be interconnected by uniformly spaced projections P by axial distances constituting a module q, and cog-wheel elements having teeth in accordance with the formula r=cq, where c is an integer and r is half the pitch diameter D. |
