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经营范围
发明名称
Electromagnetic pipe organ action
摘要
申请公布号
US1986956(A)
申请公布日期
1935.01.08
申请号
US19330682232
申请日期
1933.07.26
申请人
ROY BROWN VERNIE;SABOL ALBERT G
发明人
BROWN VERNIE ROY;SABOL ALBERT G.
分类号
G10B1/04
主分类号
G10B1/04
代理机构
代理人
主权项
地址
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