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发明名称
Packing ring
摘要
申请公布号
US2225508(A)
申请公布日期
1940.12.17
申请号
US19380221910
申请日期
1938.07.29
申请人
ABRAHAM SANDOW;WENZEL ALBERT A
发明人
SANDOW ABRAHAM;WENZEL ALBERT A.
分类号
F16J9/06;F16J9/20
主分类号
F16J9/06
代理机构
代理人
主权项
地址
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