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发明名称
FINDER OPTICAL SYSTEM CAPABLE OF VARYING OBSERVING DIRECTION
摘要
申请公布号
JPH02309332(A)
申请公布日期
1990.12.25
申请号
JP19890132188
申请日期
1989.05.25
申请人
CANON INC
发明人
SATO YASUHISA;HAYAKAWA SHINGO
分类号
G03B13/26
主分类号
G03B13/26
代理机构
代理人
主权项
地址
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