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公开(公告)号:US1628196A
公开(公告)日:1927-05-10
申请号:US72357524
申请日:1924-07-01
Applicant: PROSPERITY CO INC
Inventor: RYAN GEORGE E
IPC: D06F83/00
CPC classification number: D06F83/00
公开(公告)号:US1628196A
公开(公告)日:1927-05-10
申请号:US72357524
申请日:1924-07-01
Applicant: PROSPERITY CO INC
Inventor: RYAN GEORGE E
IPC: D06F83/00
CPC classification number: D06F83/00