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.)
Rocalla SA
Original Assignee
Rocalla SA
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 Rocalla SAfiledCriticalRocalla SA
Priority to ES0000439UpriorityCriticalpatent/ES439Y/es
Publication of ES439UpublicationCriticalpatent/ES439U/es
Application grantedgrantedCritical
Publication of ES439YpublicationCriticalpatent/ES439Y/es
La explotación exclusiva de la fabricación de tubos de pasta de cemento y amianto, sin o con mezcla de otras materias y sin o con armaduras mediante la adopción para dichos tubos de secciones adecuadas para que los propios tubos presenten exteriormente una o más aristas.
ES0000439U1931-04-251931-04-25Disposición de tubos de cemento y amianto con arista.
ExpiredES439Y
(es)