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经营范围
发明名称
GAS VALVE DEVICE
摘要
申请公布号
GB1517612(A)
申请公布日期
1978.07.12
申请号
GB19760008414
申请日期
1977.02.17
申请人
UNITED GAS IND LTD
发明人
分类号
F16K31/68;F23N5/02;G05D23/12;(IPC1-7):F16K31/00
主分类号
F16K31/68
代理机构
代理人
主权项
地址
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