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发明名称
Буровой рукав
摘要
申请公布号
SU108959(A1)
申请公布日期
1956.11.30
申请号
SU19560555335
申请日期
1956.07.30
申请人
PETROSYAN V.A.
发明人
PETROSYAN V.A.
分类号
F16L11/08
主分类号
F16L11/08
代理机构
代理人
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地址
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