Crossing gate structure,申请号US19360079727-传众专利搜索

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发明名称	Crossing gate structure
摘要
申请公布号	US2148733(A)	申请公布日期	1939.02.28
申请号	US19360079727	申请日期	1936.05.14
申请人	ASSOCIATED MANUFACTURERS' AGENCY	发明人	MCD MORRIS
分类号	B61L29/02	主分类号	B61L29/02
代理机构		代理人
主权项
地址

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