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公开(公告)号：US2300553A
公开(公告)日：1942-11-03
申请号：US29379239
申请日：1939-09-07
Applicant: ST REGIS PAPER CO
Inventor： LEE HARRY E , HOLTER FRANK M
IPC: B31B19/84
CPC classification number: B31B70/00 , B31B70/855 , B31B2160/10 , Y10S493/962
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2.发明授权Method and apparatus for folding valves in the corners of bags and closing the ends of the bags by sewed seams 失效用于折叠袋的角落中的阀门并通过缝合缝合封闭袋的端部的方法和装置
公开(公告)号：US2332324A
公开(公告)日：1943-10-19
申请号：US32244840
申请日：1940-03-06
Applicant: ST REGIS PAPER CO
Inventor： LEE HARRY E , HOLTER FRANK M
IPC: D05B13/00
CPC classification number: D05B13/00
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