| 摘要 |
1,169,320. Drinking straws. J.F. DIETZ and F.E. DIETZ. Oct.9, 1968 [Dec.4, 1967], No.47882/68. Heading C6E. A drinking tube 10 fabricated in cellulose acetate has a middle portion 13 wherein the tube follows a tertuous path around one of the straight portions 11 or 12. |
