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发明名称
Lens adjusting mechanism
摘要
申请公布号
US2532685(A)
申请公布日期
1950.12.05
申请号
US19490106435
申请日期
1949.07.23
申请人
WALKER JOSEPH B
发明人
WALKER JOSEPH B.
分类号
G03B19/18
主分类号
G03B19/18
代理机构
代理人
主权项
地址
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