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发明名称
Verfahren zur aluminothermischen Schweißung.
摘要
申请公布号
AT121538(B)
申请公布日期
1931.02.25
申请号
ATD121538
申请日期
1930.03.25
申请人
ELEKTRO-THERMIT G. M. B. H.
发明人
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主分类号
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