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发明名称
Sign flasher
摘要
申请公布号
US1984939(A)
申请公布日期
1934.12.18
申请号
US19290342144
申请日期
1929.02.23
申请人
NAXON CORPORATION
发明人
NACHUMSOHN IRVING
分类号
G08B5/38
主分类号
G08B5/38
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