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发明名称
GRAVITY INDICATOR
摘要
申请公布号
CA329698(A)
申请公布日期
1933.01.24
申请号
CAD329698
申请日期
申请人
THE WILLARD STORAGE BATTERY COMPANY
发明人
MALVERN W. SEVERANCE;CARL J. DUNZWEILER
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主分类号
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