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发明名称
Thread protector
摘要
申请公布号
US2632478(A)
申请公布日期
1953.03.24
申请号
US19480036515
申请日期
1948.07.01
申请人
RONFELDT HOWARD W
发明人
RONFELDT HOWARD W.
分类号
B65D59/00
主分类号
B65D59/00
代理机构
代理人
主权项
地址
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