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发明名称
Vacuum tool
摘要
申请公布号
US2056850(A)
申请公布日期
1936.10.06
申请号
US19350044261
申请日期
1935.10.09
申请人
GOUGHNOUR CHARLES L
发明人
GOUGHNOUR CHARLES L.
分类号
A47L9/02;A47L9/32
主分类号
A47L9/02
代理机构
代理人
主权项
地址
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