Legal status (The legal status 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 status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saint Gobain Isover G+H AG
Original Assignee
Gruenzweig und Hartmann AG
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
Priority claimed from CH378763Aexternal-prioritypatent/CH413216A/de
Application filed by Gruenzweig und Hartmann AGfiledCriticalGruenzweig und Hartmann AG
Priority to FR932736ApriorityCriticalpatent/FR1422824A/fr
Application grantedgrantedCritical
Publication of FR1422824ApublicationCriticalpatent/FR1422824A/fr