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公开(公告)号：US1453865A
公开(公告)日：1923-05-01
申请号：US29566019
申请日：1919-05-08
Applicant: DICKINSON
Inventor： DICKINSON FREDRICK S , JOHN SPRINGER
IPC: B29D30/18
CPC classification number: B29D30/18 , B29D2030/1685
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公开(公告)号：US1394069A
公开(公告)日：1921-10-18
申请号：US11513816
申请日：1916-08-16
Applicant: DICKINSON
Inventor： DICKINSON FREDRICK S , JOHN SPRINGER
IPC: B29D30/18
CPC classification number: B29D30/18 , Y10T152/10855
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