Companhia Siderurgica Nacional - Company Profile

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Companhia Siderurgica Nacional: Patents

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Publication Identifier	Document Type	Title	Classification-CPC	Publication Date
BR102015004126B1	Grant	composição para a cimentação de poços de petróleo a baixa temperatura		June 15, 2021
US20180127845A1	Application	Product that is hot rolled into long steel and use thereof	C21D8/065; C21D9/525; C22C38/001; C22C38/004; C22C38/02; C22C38/04; C22C38/06; C22C38/12; C22C38/14; C22C38/20; C22C38/26; C22C38/28	May 10, 2018
BRMU8102368U2	Application	produto cimentício	Y02W30/91	January 31, 2017
BR102015004126A2	Application	composição para a cimentação de poços de petróleo a baixa temperatura		August 30, 2016
BR102013008914A2	Application	abraçadeira articulada		June 28, 2016

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