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公开(公告)号:US1369351A
公开(公告)日:1921-02-22
申请号:US38742620
申请日:1920-06-08
Applicant: ALLISON PATTERSON THOMAS
Inventor: ALLISON PATTERSON THOMAS
IPC: D06F1/08
CPC classification number: D06F1/08
公开(公告)号:US1369351A
公开(公告)日:1921-02-22
申请号:US38742620
申请日:1920-06-08
Applicant: ALLISON PATTERSON THOMAS
Inventor: ALLISON PATTERSON THOMAS
IPC: D06F1/08
CPC classification number: D06F1/08