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公开(公告)号：US1840295A
公开(公告)日：1932-01-05
申请号：US75871324
申请日：1924-12-29
Applicant: ALFRED M SMILEY , JAMES B KILLIAN , FRANK MARRIOTT , THOMAS E BURNS , LOUIS M SIPPEL , ROBERT BENNINGER , LEON M FEIGENBAUM
Inventor： SMILEY ALFRED M
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