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发明名称
Diaphragm valves
摘要
A spring biased diaphragm valve having circular beads on the diaphragm one of which seats against and within the seat and the other surrounding the spring.
申请公布号
US4221361(A)
申请公布日期
1980.09.09
申请号
US19780876883
申请日期
1978.02.13
申请人
BARMAD
发明人
WEINGARTEN, ZVI
分类号
F16K7/12;F16K11/02;(IPC1-7):F16K7/16;F16K7/17
主分类号
F16K7/12
代理机构
代理人
主权项
地址
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