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发明名称
Packing ring
摘要
申请公布号
US2021112(A)
申请公布日期
1935.11.12
申请号
US19330698700
申请日期
1933.11.18
申请人
GILMER PACKING RING CORPORATION
发明人
GILMER PERCY M.
分类号
F16J9/06
主分类号
F16J9/06
代理机构
代理人
主权项
地址
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