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公开(公告)号:US1930301A
公开(公告)日:1933-10-10
申请号:US48606330
申请日:1930-10-02
Applicant: HERMANN BECKMANN
Inventor: HERMANN BECKMANN
IPC: B41M1/32
CPC classification number: B41M1/32
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公开(公告)号:US1831406A
公开(公告)日:1931-11-10
申请号:US13346326
申请日:1926-09-03
Applicant: HERMANN BECKMANN
Inventor: HERMANN BECKMANN
IPC: H01M2/16
CPC classification number: H01M2/1653
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公开(公告)号:US1909746A
公开(公告)日:1933-05-16
申请号:US41919230
申请日:1930-01-07
Applicant: HERMANN BECKMANN
Inventor: HERMANN BECKMANN
CPC classification number: B32B25/04 , B29K2021/00 , B29K2105/04 , B32B15/06 , B32B2307/304 , B32B2307/306 , B32B2307/714 , Y10T428/249986 , Y10T428/263 , Y10T428/31707 , Y10T428/31841
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公开(公告)号:US1918893A
公开(公告)日:1933-07-18
申请号:US34002829
申请日:1929-02-14
Applicant: HERMANN BECKMANN
Inventor: HERMANN BECKMANN
IPC: B01J20/28
CPC classification number: B01J20/28026 , B01J20/28023 , B01J20/2803 , B01J20/28042 , Y10S210/07
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公开(公告)号:US1745657A
公开(公告)日:1930-02-04
申请号:US4095325
申请日:1925-07-01
Applicant: HERMANN BECKMANN
Inventor: HERMANN BECKMANN
CPC classification number: C08J9/28 , C08J2201/0504 , C08J2321/00 , C08L21/00 , Y10S602/90
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