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公开(公告)号：CA204987A
公开(公告)日：1920-10-19
申请号：CA204987D
Applicant: CLARENCE R NICHOLS , WILLIAM T SHORES , OTTO R MCATEE , WILLIAM A MCATEE , WILLIAM B SANFORD , ALPHONSE B LOVAN , GEORGE W YOUNG
Inventor： THOMPSON GEORGE W
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