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发明名称
Способ защиты пьезоэлементов от влаги
摘要
申请公布号
SU67087(A1)
申请公布日期
1945.11.30
申请号
SU19450337311
申请日期
1945.02.17
申请人
SIDOROV L.P.
发明人
SIDOROV L.P.
分类号
H03H3/02
主分类号
H03H3/02
代理机构
代理人
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