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Main Author: پنا لال ورما | Panā Lāl Varmā
Subject: Applied Science & Technology
Place: آگرہ | Āgrah
Publisher: مطبع اورنمٹل جوب پریس | Maṭbaʿ Arnamenṭal Jūb Pres
Date of publication: 1887
Language: Urdu
Page: 272 p.
Serial no: 55168
Keyword: Inventions -- Patents (Collections) | Technological innovations
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