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发明名称
Electron microscope
摘要
申请公布号
US2267137(A)
申请公布日期
1941.12.23
申请号
US19390289714
申请日期
1939.08.12
申请人
FIDES GESELLSCHAFT FUR DIE VERWALTUNG UND VERWERTUNG VON GEWERBLICHEN SCHUTZRECHTEN MIT BESCHRANKTER HAFTUNG
发明人
RUSKA ERNST;RUSKA HELMUT
分类号
H01J37/22
主分类号
H01J37/22
代理机构
代理人
主权项
地址
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