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发明名称
Precision flask and jacket
摘要
申请公布号
US2154749(A)
申请公布日期
1939.04.18
申请号
US19370148492
申请日期
1937.06.16
申请人
HINES JAMES F
发明人
HINES JAMES F.
分类号
B22C21/02
主分类号
B22C21/02
代理机构
代理人
主权项
地址
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