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经营范围
发明名称
Helical coils using mothball filler
摘要
申请公布号
US3411195(A)
申请公布日期
1968.11.19
申请号
US19660525237
申请日期
1966.02.04
申请人
AMERICAN STANDARD INC.
发明人
HIMSTEDT ERICH
分类号
B21D11/06
主分类号
B21D11/06
代理机构
代理人
主权项
地址
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