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发明名称
Apparatus for surfacing roofing
摘要
申请公布号
US1872622(A)
申请公布日期
1932.08.16
申请号
US19290344227
申请日期
1929.03.05
申请人
THE PATENT AND LICENSING CORPORATION
发明人
DONAHUE ELBERT S.
分类号
D21J1/20
主分类号
D21J1/20
代理机构
代理人
主权项
地址
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