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公开(公告)号:US3009542A
公开(公告)日:1961-11-21
申请号:US78341858
申请日:1958-12-29
Applicant: INT BASIC ECONOMY CORP
Inventor: SHADA JOSEPH J
IPC: F16N7/34
CPC classification number: F16N7/34
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公开(公告)号:US3201925A
公开(公告)日:1965-08-24
申请号:US13218761
申请日:1961-08-17
Applicant: INT BASIC ECONOMY CORP
Inventor: SHADA JOSEPH J
IPC: B01D45/08
CPC classification number: B01D45/08
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