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公开(公告)号：US1664536A
公开(公告)日：1928-04-03
申请号：US13128826
申请日：1926-08-24
Applicant: BEMENT NEWTON S
Inventor： BEMENT NEWTON S
CPC classification number: B60Q1/14 , F21S41/18 , F21S41/39 , F21S41/43 , F21S41/47 , F21S41/663 , F21V11/00 , F21W2107/10
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