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发明名称
Method for making stop cocks
摘要
申请公布号
US2100438(A)
申请公布日期
1937.11.30
申请号
US19360095149
申请日期
1936.08.10
申请人
IRENE FORRESTER
发明人
FORRESTER IRENE
分类号
B21K1/24
主分类号
B21K1/24
代理机构
代理人
主权项
地址
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