Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Предприятие П/Я Г-4807filedCriticalПредприятие П/Я Г-4807
Priority to SU2055258ApriorityCriticalpatent/SU555999A1/ru
Application grantedgrantedCritical
Publication of SU555999A1publicationCriticalpatent/SU555999A1/ru
Verfahren zur herstellung von rohren grosser langen besonders fur die energiewirtschaft, werkzeuge fur die durchfuhrung und nach diesem verfahren hergestellte rohre