| 摘要 |
500,503. Indiarubber springs. MINOR, H. R. Dec. 3, 1937, No. 33494. Convention date, April 15. [Class 108 (iii)] [Also in Group V] A cellular rubber body has cells of greatest size, which may be elongated, located at a portion intermediate the ends of the body. One end of the body may be of solid unsponged rubber. Specification 500,454, [Group V], is referred to. |
