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发明名称
VALVE
摘要
申请公布号
CA429019(A)
申请公布日期
1945.07.24
申请号
CAD429019
申请日期
申请人
PACKLESS METAL PRODUCTS CORPORATION
发明人
STEPHEN GUARNASCHELLI
分类号
主分类号
代理机构
代理人
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