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公开(公告)号:US2866169A
公开(公告)日:1958-12-23
申请号:US34018553
申请日:1953-03-04
Applicant: ELECTROLUX CORP
Inventor: EINAR LOFGREN GUSTAF
CPC classification number: A47L9/2889 , A47L9/2868 , H01R13/62
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公开(公告)号:US2337561A
公开(公告)日:1943-12-28
申请号:US39915641
申请日:1941-06-21
Applicant: ELECTROLUX CORP
Inventor: EINAR LOFGREN GUSTAF
IPC: A47L9/32
CPC classification number: A47L9/327 , Y10T16/4554
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公开(公告)号:US2322948A
公开(公告)日:1943-06-29
申请号:US37560941
申请日:1941-01-23
Applicant: ELECTROLUX CORP
Inventor: EINAR LOFGREN GUSTAF
IPC: A47L5/36
CPC classification number: A47L5/362 , Y10S292/65 , Y10T292/0856
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公开(公告)号:US2318317A
公开(公告)日:1943-05-04
申请号:US30644839
申请日:1939-11-28
Applicant: ELECTROLUX CORP
Inventor: EINAR LOFGREN GUSTAF
IPC: A47L9/06
CPC classification number: A47L9/06 , A47L9/0613
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公开(公告)号:US2182565A
公开(公告)日:1939-12-05
申请号:US20618638
申请日:1938-05-05
Applicant: ELECTROLUX CORP
Inventor: EINAR LOFGREN GUSTAF
IPC: A47L9/32
CPC classification number: A47L9/327 , Y10T16/4554
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公开(公告)号:US2174444A
公开(公告)日:1939-09-26
申请号:US24089438
申请日:1938-11-17
Applicant: ELECTROLUX CORP
Inventor: EINAR LOFGREN GUSTAF
IPC: A47L9/22
CPC classification number: A47L9/22
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公开(公告)号:US2804166A
公开(公告)日:1957-08-27
申请号:US35414853
申请日:1953-05-11
Applicant: ELECTROLUX CORP
Inventor: STEVENS HENRY W , EINAR LOFGREN GUSTAF , BROWN RAYMOND L , BEEDE ARNOLD H
IPC: A47L9/14
CPC classification number: A47L9/14
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8.Self-sealing receptacle for separating dust from an air stream 失效
Title translation: 用于将灰尘与空气流分离的自密封插座公开(公告)号:US2596808A
公开(公告)日:1952-05-13
申请号:US8579749
申请日:1949-04-06
Applicant: ELECTROLUX CORP
Inventor: EINAR LOFGREN GUSTAF
IPC: A47L9/14
CPC classification number: A47L9/1454 , Y10S55/03
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公开(公告)号:US2371767A
公开(公告)日:1945-03-20
申请号:US53989344
申请日:1944-06-12
Applicant: ELECTROLUX CORP
Inventor: EINAR LOFGREN GUSTAF
IPC: A47L9/06
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公开(公告)号:US2337906A
公开(公告)日:1943-12-28
申请号:US31359140
申请日:1940-01-12
Applicant: ELECTROLUX CORP
Inventor: EINAR LOFGREN GUSTAF
IPC: A47L7/04
CPC classification number: A47L7/04
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