Invention Grant
US3297208A Container spout, with axially movable, horizontally swingable pouring extension, and a captive closure 失效
集装箱喷口,可轴向移动,水平摆动倾倒延伸,以及捕获闭合

Container spout, with axially movable, horizontally swingable pouring extension, and a captive closure
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