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发明名称
Method of making chains
摘要
申请公布号
US2070362(A)
申请公布日期
1937.02.09
申请号
US19320629268
申请日期
1932.08.18
申请人
FELIX SCHULL
发明人
KREUTZ WILLY
分类号
B21L9/00;B21L11/02
主分类号
B21L9/00
代理机构
代理人
主权项
地址
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