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.)
Individual
Original Assignee
Individual
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 IndividualfiledCriticalIndividual
Priority to ES0021912UpriorityCriticalpatent/ES21912Y/es
Publication of ES21912UpublicationCriticalpatent/ES21912U/es
Application grantedgrantedCritical
Publication of ES21912YpublicationCriticalpatent/ES21912Y/es
Por un nuevo saco, caracterizado por estar formado de dos hojas de papel impermeabilizado, a base de una capa de alquitrán extendida entre las dos hojas, o a base de cuatro hojas de papel y tres capas de alquitrán.