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经营范围
发明名称
Process of die casting and assembling expansion shields
摘要
申请公布号
US2137538(A)
申请公布日期
1938.11.22
申请号
US19370119466
申请日期
1937.01.07
申请人
STAR EXPANSION BOLT COMPANY
发明人
MCINTOSH ROY E.
分类号
B22D17/00
主分类号
B22D17/00
代理机构
代理人
主权项
地址
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