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发明名称
Устройство тепловой изоляции с воздушными прослойками для паропроводов
摘要
申请公布号
SU20892(A1)
申请公布日期
1931.05.31
申请号
SU19300070236
申请日期
1930.05.16
申请人
VALIK A.D.
发明人
VALIK A.D.
分类号
F16L59/07
主分类号
F16L59/07
代理机构
代理人
主权项
地址
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