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经营范围
发明名称
Self-aligning spherical joint or bearing
摘要
申请公布号
US1900617(A)
申请公布日期
1933.03.07
申请号
US19300430098
申请日期
1930.02.20
申请人
RALPH RICARDO HARRY
发明人
RICARDO HARRY RALPH
分类号
F16C23/04
主分类号
F16C23/04
代理机构
代理人
主权项
地址
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