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发明名称
Method of making valve bodies
摘要
申请公布号
US3300844(A)
申请公布日期
1967.01.31
申请号
US19630278027
申请日期
1963.05.06
申请人
GRINNELL CORPORATION
发明人
BOTELER HENRY W.
分类号
B21C37/29;B21K1/24;B29D23/00;F16K27/02
主分类号
B21C37/29
代理机构
代理人
主权项
地址
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