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发明名称
Machine for making and assembling a valve pin and valve gasket support
摘要
申请公布号
US1901459(A)
申请公布日期
1933.03.14
申请号
US19290374782
申请日期
1929.06.29
申请人
A. SCHRADER'S SON, INC.
发明人
LEWIS ARTHUR J.
分类号
B21K25/00
主分类号
B21K25/00
代理机构
代理人
主权项
地址
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