Patent search ap:("BECKWITH MFG CO") AND inv:"BOUGHTON WILLIS A" Page 1

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发明授权
Resilient flexible sheet and method of making the same 失效
Title translation: 弹性柔性片及其制作方法

公开(公告)号：US1833151A

公开(公告)日：1931-11-24

申请号：US3418725

申请日：1925-06-01

Applicant: BECKWITH MFG CO

Inventor： BOUGHTON WILLIS A

IPC: D06N3/00

CPC classification number: D06N3/00 , Y10T428/31844 , Y10T442/2361 , Y10T442/2762

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