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发明名称
SEAL
摘要
申请公布号
US3531133(A)
申请公布日期
1970.09.29
申请号
USD3531133
申请日期
1968.11.08
申请人
RESEARCH ENG. CO.
发明人
JOHN M. SHEESLEY;RONALD A. GULICK
分类号
F16J15/12;F16L23/18;(IPC1-7):F16L19/02;F16J15/00
主分类号
F16J15/12
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代理人
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