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经营范围
发明名称
ACOUSTIC ELECTRIC ENERGY CONVERTER
摘要
申请公布号
CA337266(A)
申请公布日期
1933.11.21
申请号
CAD337266
申请日期
申请人
GEORGE W. PIERCE
发明人
GEORGE W. PIERCE
分类号
主分类号
代理机构
代理人
主权项
地址
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