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发明名称
COMBINED UNLOADER PILOT AND SWITCH
摘要
申请公布号
CA303117(A)
申请公布日期
1930.08.19
申请号
CAD303117
申请日期
申请人
HAROLD KERSHAW
发明人
HAROLD KERSHAW
分类号
主分类号
代理机构
代理人
主权项
地址
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