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发明名称
Flash device
摘要
申请公布号
US1780509(A)
申请公布日期
1930.11.04
申请号
US19290349398
申请日期
1929.03.23
申请人
SKINNER WILLIAM T
发明人
SKINNER WILLIAM T.
分类号
G03B15/04
主分类号
G03B15/04
代理机构
代理人
主权项
地址
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