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发明名称
ELECTRON BEAM RECORDER
摘要
申请公布号
US3454821(A)
申请公布日期
1969.07.08
申请号
USD3454821
申请日期
1967.11.09
申请人
INTERN. BUSINESS MACHINES CORP.
发明人
KARL H. LOEFFLER
分类号
B04B5/00;B04B11/00;G11C13/04;H01J37/147;(IPC1-7):H01J29/70
主分类号
B04B5/00
代理机构
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