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发明名称
Improved method of and means for manufacturing cones for loud speakers and other purposes
摘要
申请公布号
GB391696(A)
申请公布日期
1933.05.04
申请号
GB19320028789
申请日期
1932.10.14
申请人
ARTHUR SPRINGETT MILLBOURN;ARTHUR MILLBOURN AND COMPANY LIMITED
发明人
分类号
H04R31/00
主分类号
H04R31/00
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