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发明名称
Schienennagel mit einer Mehrzahl von Laengsnuten
摘要
申请公布号
DE548744(C)
申请公布日期
1932.04.18
申请号
DE1929S091917D
申请日期
1929.05.29
申请人
SPIRAL-ROLLED PRODUCTS CO. INC.
发明人
分类号
E01B9/06
主分类号
E01B9/06
代理机构
代理人
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