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经营范围
发明名称
Vacuum cleaner
摘要
申请公布号
US2036058(A)
申请公布日期
1936.03.31
申请号
US19340756971
申请日期
1934.12.11
申请人
ELECTRIC VACUUM CLEANER COMPANY, INCORPORATED
发明人
LANG HENRY T.
分类号
A47L5/30;A47L9/22
主分类号
A47L5/30
代理机构
代理人
主权项
地址
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