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发明名称
SLIDE PROJECTING MEANS
摘要
申请公布号
CA829015(A)
申请公布日期
1969.12.09
申请号
CAD829015
申请日期
申请人
G A F CORPORATION
发明人
WALTER J. HALL
分类号
主分类号
代理机构
代理人
主权项
地址
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