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经营范围
发明名称
PIPELINE PACKER
摘要
申请公布号
GB2235745(A)
申请公布日期
1991.03.13
申请号
GB19900024309
申请日期
1990.11.08
申请人
* DOWASUE INDUSTRIES LTD
发明人
DOUGLAS C * CAMPBELL
分类号
F16L55/128;F16L55/28;F16L55/32
主分类号
F16L55/128
代理机构
代理人
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地址
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