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发明名称
Dust guard cap for journal boxes
摘要
申请公布号
US2750213(A)
申请公布日期
1956.06.12
申请号
US19520276840
申请日期
1952.03.15
申请人
EDMUND P. KELLY
发明人
SALE WILLIAM H.
分类号
B61F15/22
主分类号
B61F15/22
代理机构
代理人
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