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.)
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Wingfoot Corp
Original Assignee
Wingfoot Corp
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Filing date
Publication date
Application filed by Wingfoot CorpfiledCriticalWingfoot Corp
Publication of ES215025A1publicationCriticalpatent/ES215025A1/en
Perforating, Stamping-Out Or Severing By Means Other Than Cutting
(AREA)
Details Of Cutting Devices
(AREA)
Abstract
The method of drilling thermoplastic material comprising heating a drilling member to a temperature level sufficient to cause the plastic flow of the thermoplastic material adjacent said member when contacting the drilling member. (Machine-translation by Google Translate, not legally binding)
ES0215025A1953-07-031954-04-28A method for perforating thermoplastic films (Machine-translation by Google Translate, not legally binding)
ExpiredES215025A1
(en)
Improvements in heating devices adaptable to the outlet of apparatus producers of aerosols and/or micronieblas (Machine-translation by Google Translate, not legally binding)