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发明名称
COMBINED TROLLEY TRACK AND HANGER FOR SLIDING DOORS
摘要
申请公布号
CA300419(A)
申请公布日期
1930.05.20
申请号
CAD300419
申请日期
申请人
THE RICHARDS-WILCOX MANUFACTURING CO.
发明人
PETER L. HOFFMAN
分类号
主分类号
代理机构
代理人
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