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发明名称
Traveling block limit control
摘要
申请公布号
US2530766(A)
申请公布日期
1950.11.21
申请号
US19480008487
申请日期
1948.02.14
申请人
HALDERMAN CLARENCE W
发明人
HALDERMAN CLARENCE W.
分类号
B66D1/56
主分类号
B66D1/56
代理机构
代理人
主权项
地址
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