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 ES0011172UpriorityCriticalpatent/ES11172Y/en
Publication of ES11172UpublicationCriticalpatent/ES11172U/en
Application grantedgrantedCritical
Publication of ES11172YpublicationCriticalpatent/ES11172Y/en
Perforating, Stamping-Out Or Severing By Means Other Than Cutting
(AREA)
Crushing And Pulverization Processes
(AREA)
Lubricants
(AREA)
Abstract
A drill for the perforation of paper or analogous materials which is characterized as being formed in one piece, the cutting part being constituted by the same material as the rest of the drill or of an extra material resistant to friction. (Machine-translation by Google Translate, not legally binding)
ES0011172U1944-12-041944-12-04
Drill bit for perforating paper and similar materials.
ExpiredES11172Y
(en)