发明名称 |
VACUUM CLEANER |
摘要 |
A multi-speed electrically driven, lightweight vacuum cleaner with a switch manually held closed for momentary extra high speed and air volume surge. A warning light responsive to rising temperature of motor cooled by filtered exhaust air passing through the motor indicates when a filter bag should be emptied.
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申请公布号 |
US3695006(A) |
申请公布日期 |
1972.10.03 |
申请号 |
USD3695006 |
申请日期 |
1970.10.23 |
申请人 |
DYNAMICS CORP. OF AMERICA |
发明人 |
BRUNO M. VALBONA;WILLIAM J. CONLON;HARRY M. VOGLESONGER |
分类号 |
A47L5/24;A47L9/19;A47L9/28;(IPC1-7):B01D46/02 |
主分类号 |
A47L5/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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