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发明名称
Valve and packing
摘要
申请公布号
US1800552(A)
申请公布日期
1931.04.14
申请号
US19260116263
申请日期
1926.06.16
申请人
MARTIN JR JESSE C
发明人
JR. JESSE C. MARTIN,
分类号
F16K41/02
主分类号
F16K41/02
代理机构
代理人
主权项
地址
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