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发明名称
LEAKPROOF AND SIFTPROOF PACKAGES
摘要
申请公布号
CA481838(A)
申请公布日期
1952.03.18
申请号
CAD481838
申请日期
申请人
MARATHON CORPORATION
发明人
ROBERT A. FARRELL
分类号
主分类号
代理机构
代理人
主权项
地址
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