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发明名称
AUTOMATIC BLADE CONTROLS FOR ROAD GRADERS AND THE LIKE
摘要
申请公布号
CA517477(A)
申请公布日期
1955.10.18
申请号
CAD517477
申请日期
申请人
FRANK V. BELL
发明人
FRANK V. BELL
分类号
主分类号
代理机构
代理人
主权项
地址
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