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公开(公告)号：US2833351A
公开(公告)日：1958-05-06
申请号：US55357355
申请日：1955-12-16
Applicant: FRAM CORP
Inventor： PATON JOSEPH H , SHERRILL JAMES W , PYL JR CHESTER A VANDER
IPC: B26D3/08
CPC classification number: B26D3/08 , Y10S83/953 , Y10T83/343 , Y10T83/49 , Y10T83/738
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2.发明授权
公开(公告)号：US2901949A
公开(公告)日：1959-09-01
申请号：US63137156
申请日：1956-12-28
Applicant: FRAM CORP
Inventor： PATON JOSEPH H , SHERRILL JAMES W , PYL JR CHESTER A VANDER
CPC classification number: B31D5/0082 , B01D29/111 , B01D29/21 , Y10S493/941
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