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发明名称
Flange protector
摘要
A one piece protector for the machined surface of a flange for pipes and valves which may be installed and removed by finger pressure on integral thimbles which frictionally engage the bores of the bolt holes of the flange.
申请公布号
US4014368(A)
申请公布日期
1977.03.29
申请号
US19760657734
申请日期
1976.02.13
申请人
ALLIANCE PLASTICS, INC.
发明人
NELSEN, JOHN E.
分类号
B65D59/02;B65D59/06;(IPC1-7):B65D59/06
主分类号
B65D59/02
代理机构
代理人
主权项
地址
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