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公开(公告)号：US1453539A
公开(公告)日：1923-05-01
申请号：US56088622
申请日：1922-05-15
Applicant: BARZ ROBERT H
Inventor： BARZ ROBERT H
CPC classification number: F21V11/00 , F21S41/162 , F21S41/321 , F21S41/36 , F21S41/365 , F21S41/39 , F21W2107/10
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