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公开(公告)号：US935390A
公开(公告)日：1909-09-28
申请号：US1908436616
申请日：1908-06-04
Applicant: MITCHELL RICHARD PAGE , BRAWLEY ROBERT VANCE
Inventor： MITCHELL RICHARD PAGE , BRAWLEY ROBERT VANCE
CPC classification number: F23N1/00
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