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发明名称
Rotary coupler arrangement
摘要
申请公布号
US2990962(A)
申请公布日期
1961.07.04
申请号
US19540469417
申请日期
1954.11.17
申请人
AMERICAN STEEL FOUNDRIES
发明人
NYSTROM KARL F.
分类号
B61G7/10
主分类号
B61G7/10
代理机构
代理人
主权项
地址
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