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发明名称
Joining structures for metal pipes
摘要
A joining structure for metal pipes to be applied in each passage hole of a pipe fitting. This structure can save time in pipe fitting work, and can reinforce the mutual joined condition of a pipe and a pipe fitting.
申请公布号
US4930816(A)
申请公布日期
1990.06.05
申请号
US19890352933
申请日期
1989.05.17
申请人
BIING-YIH, HWANG
发明人
BIING-YIH, HWANG
分类号
B25B13/02;F16L19/07;F16L21/04
主分类号
B25B13/02
代理机构
代理人
主权项
地址
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