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发明名称
Leakproof cover and ring seal
摘要
申请公布号
US2237952(A)
申请公布日期
1941.04.08
申请号
US19380211891
申请日期
1938.06.04
申请人
SMITH CHARLES F
发明人
SMITH CHARLES F.
分类号
B65D45/34
主分类号
B65D45/34
代理机构
代理人
主权项
地址
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