దస్త్రం:Patent Electrogefest.jpg

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Patent_Electrogefest.jpg(360 × 486 పిక్సెళ్ళు, ఫైలు పరిమాణం: 61 KB, MIME రకం: image/jpeg)

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వివరణ
English: N.N.Benardosa's patent for a way of arc electric welding "Electrogefest"
Русский: Патент Н. Н. Бенардоса на способ дуговой электросварки "Электрогефест"
తేదీ
మూలం http://inventors.about.com/library/inventors/blwelding.htm
కర్త Unknown authorUnknown author

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ప్రస్తుత14:42, 19 సెప్టెంబరు 200814:42, 19 సెప్టెంబరు 2008 నాటి కూర్పు నఖచిత్రం360 × 486 (61 KB)Сдобников Андрей{{Information |Description={{en|1=N.N.Benardosa's patent for a way of arc electric welding "Electrogefest"}} {{ru|1=Патент Н. Н. Бенардоса на способ дуговой электросварки "Электрогефест"}} |Source=

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