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发明名称
Herstellung von aus einem Kopf und einem Schaft bestehenden Hohlkoerpern, insbesondere Hohlventilen
摘要
申请公布号
DE570327(C)
申请公布日期
1933.02.15
申请号
DE1931Z019817D
申请日期
1931.12.22
申请人
ALBINO ZANZI
发明人
分类号
B21K1/22;F01L3/02
主分类号
B21K1/22
代理机构
代理人
主权项
地址
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