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发明名称
Diffractometer
摘要
申请公布号
US2805343(A)
申请公布日期
1957.09.03
申请号
US19540442568
申请日期
1954.07.12
申请人
LANG ANDREW R
发明人
LANG ANDREW R.
分类号
G01N23/207
主分类号
G01N23/207
代理机构
代理人
主权项
地址
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