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发明名称
Suction cleaner
摘要
申请公布号
US1787537(A)
申请公布日期
1931.01.06
申请号
US19270230514
申请日期
1927.11.02
申请人
EDWARD A. LANGENBACH
发明人
LEAHY WILLIAM P.
分类号
A47L5/34
主分类号
A47L5/34
代理机构
代理人
主权项
地址
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