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发明名称
Key means for shafts and rotors and method of producing same
摘要
申请公布号
US2439019(A)
申请公布日期
1948.04.06
申请号
US19430505650
申请日期
1943.10.09
申请人
GRAY-MILLS CORPORATION
发明人
MORSE NORMAND W.
分类号
F16D1/06
主分类号
F16D1/06
代理机构
代理人
主权项
地址
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