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发明名称
A GAS SEAL
摘要
申请公布号
GB8915244(D0)
申请公布日期
1989.08.23
申请号
GB19890015244
申请日期
1989.07.03
申请人
SECRETARY OF STATE FOR DEFENCE
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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