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发明名称
COLLAPSIBLE TELEVISION AERIAL MAST
摘要
申请公布号
CA498356(A)
申请公布日期
1953.12.15
申请号
CAD498356
申请日期
申请人
CALVIN O. HOWDEN
发明人
CALVIN O. HOWDEN
分类号
主分类号
代理机构
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