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发明名称
Устройство для закрывания ниши якоря
摘要
申请公布号
SU108464(A1)
申请公布日期
1957.11.30
申请号
SU19570566179
申请日期
1957.02.05
申请人
PROKHOROV B.I.
发明人
PROKHOROV B.I.
分类号
B63B21/22
主分类号
B63B21/22
代理机构
代理人
主权项
地址
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