Demonstration apparatus of gyroscopic principles,申请号US19300471879-传众专利搜索

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发明名称	Demonstration apparatus of gyroscopic principles
摘要
申请公布号	US1987763(A)	申请公布日期	1935.01.15
申请号	US19300471879	申请日期	1930.07.30
申请人	TEA PETER L	发明人	TEA PETER L.
分类号	G09B23/10	主分类号	G09B23/10
代理机构		代理人
主权项
地址

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