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发明名称
Einrichtung zur selbsttaetigen Nulleinstellung der Messuhr bei Vorlasthaertepruefern
摘要
申请公布号
DE749444(C)
申请公布日期
1944.11.25
申请号
DE1942R113918D
申请日期
1942.09.03
申请人
发明人
分类号
G01N3/44
主分类号
G01N3/44
代理机构
代理人
主权项
地址
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