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发明名称
VORRICHTUNG ZUR VAKUUMMESSUNG UNTER BERUECKSICHTIGUNG DES ATMOSPHAERISCHEN LUFTDRUCKES.
摘要
申请公布号
DE1605377(U)
申请公布日期
1950.04.20
申请号
DE194800D5961U
申请日期
1948.10.01
申请人
RUHRCHEMIE AKTIENGESELLSCHAFT
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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