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发明名称
OPTICAL VIEWING SYSTEMS
摘要
申请公布号
CA895998(A)
申请公布日期
1972.03.21
申请号
CAD895998
申请日期
申请人
TECHNICAL OPERATIONS
发明人
MICHAEL GRASER, JR.
分类号
G03C7/00;(IPC1-7):G03C7/00
主分类号
G03C7/00
代理机构
代理人
主权项
地址
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