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发明名称
EXTENSION TUBE
摘要
申请公布号
JPS56121005(A)
申请公布日期
1981.09.22
申请号
JP19800023695
申请日期
1980.02.27
申请人
CANON KK
发明人
AOYANAGI MASAO;KAMATA SHIGERU
分类号
G02B7/02;G02B7/14;G03B9/02;G03B17/14
主分类号
G02B7/02
代理机构
代理人
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