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发明名称
Spring cover
摘要
申请公布号
US1808508(A)
申请公布日期
1931.06.02
申请号
US19280291026
申请日期
1928.07.07
申请人
POPE DANIEL K
发明人
POPE DANIEL K.
分类号
F16F1/24
主分类号
F16F1/24
代理机构
代理人
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