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发明名称
Grid making machine and method
摘要
申请公布号
US1897460(A)
申请公布日期
1933.02.14
申请号
US19290407707
申请日期
1929.11.16
申请人
ALFRED HOFMANN & COMPANY
发明人
ANDERSON VICTOR;TRUTNER DONALD G.
分类号
H01J19/00
主分类号
H01J19/00
代理机构
代理人
主权项
地址
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