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 ES0071509UpriorityCriticalpatent/ES71509U/es
Publication of ES71509UpublicationCriticalpatent/ES71509U/es
Sobre perfeccionado caracterizado por su eficacia fundamentada en un hilo fino pero resistente adherido al sobre por su interior de forma que asome un centímetro, del que se pueda tirar produciendo la abertura del sobre sin necesidad de abrecartas u otros objetos cortantes.