| 摘要 |
<p>925,647. Stoppers. DOVER MOLDED PRODUCTS CO. Oct. 11, 1960 [Oct. 12, 1959], No. 34778/60. Class 125(3). [Also in Group V] A plastic cap has a flexible, conical sealing ring 4 integrally moulded with the cap. The ring may be formed on the wall or top of the cap. Instead of being screw-threaded the cap may have a locking lip 41 and a tab 45 to assist in pulling the cap off.</p> |
