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经营范围
发明名称
AUSLASS- UND DURCHFLUSSREGEL-VORRICHTUNG FUER METALLURGISCHE GEFAESSE UND GIESSVERFAHREN.
摘要
申请公布号
AT57321(T)
申请公布日期
1990.10.15
申请号
AT19870907412T
申请日期
1987.11.27
申请人
ARVA AG
发明人
VATERLAUS, ARTHUR
分类号
B22D41/08;B22D41/14;(IPC1-7):B22D41/08
主分类号
B22D41/08
代理机构
代理人
主权项
地址
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Ball writing head for electrical typewriter - is of metal alloy mixture rendered porous to transfer dyestuff solution
Easily adjusted swivel office chair - has detachable clamp connection between backrest rocker support and seat plate
Closing joints on tracks of toy railways - involves U=shaped strap joint fitted with flaps angled into indentations in base and having rectangular opening
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