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公开(公告)号：US1399389A
公开(公告)日：1921-12-06
申请号：US45552321
申请日：1921-03-25
Applicant: HERMAN KAPOTKIN
Inventor： HERMAN KAPOTKIN
IPC: A41B3/08
CPC classification number: A41B3/08 , Y10T24/44923
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