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公开(公告)号：US1796666A
公开(公告)日：1931-03-17
申请号：US12034426
申请日：1926-07-03
Applicant: PROSPERITY CO INC
Inventor： REEPS CHARLES O
IPC: D06F71/40
CPC classification number: D06F71/40
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公开(公告)号：US1722823A
公开(公告)日：1929-07-30
申请号：US10191926
申请日：1926-04-14
Applicant: PROSPERITY CO INC
Inventor： REEPS CHARLES O
CPC classification number: D06F65/02
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