| 摘要 |
1,249,049. Portable containers. ALUMINUM CO. OF AMERICA. 5 Dec., 1969 [23 Dec., 1968], No. 59448/69. Heading B8D. [Also in Division B3] An aluminium or aluminium alloy container end closure adapted to be riveted to a tear tab (see Division B3) has a thickness of 0À008- 0À016 inch and a protective coating on its undersurface of vinyl, epoxy or epoxy phenolic resin, the latter having been baked at 400‹ F. for 20 minutes. |
