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发明名称
Pipe flask
摘要
申请公布号
US1826083(A)
申请公布日期
1931.10.06
申请号
US19290391411
申请日期
1929.09.09
申请人
MCWANE CAST IRON PIPE COMPANY
发明人
MCWANE JAMES R.
分类号
B22C21/00
主分类号
B22C21/00
代理机构
代理人
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地址
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