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发明名称
VARIABLE POWER LENS
摘要
申请公布号
CA583087(A)
申请公布日期
1959.09.15
申请号
CA19550687212
申请日期
1955.06.04
申请人
LAWRENCE J. DAVENPORT
发明人
LAWRENCE J. DAVENPORT
分类号
G02C7/02
主分类号
G02C7/02
代理机构
代理人
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地址
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