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发明名称
AUTOMATIC SCREW PITCH CHANGE AND LOCKING DEVICE
摘要
申请公布号
CA493435(A)
申请公布日期
1953.06.09
申请号
CAD493435
申请日期
申请人
MAXIME DE LAGREVOL;ROGER LABOUREIX
发明人
MAXIME DE LAGREVOL;ROGER LABOUREIX
分类号
主分类号
代理机构
代理人
主权项
地址
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