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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Mining Engineering Co Ltd MECO
Original Assignee
Mining Engineering Co Ltd MECO
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Filing date
Publication date
Application filed by Mining Engineering Co Ltd MECOfiledCriticalMining Engineering Co Ltd MECO
Publication of ES226200A1publicationCriticalpatent/ES226200A1/en
E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
E21F1/04—Air ducts
Landscapes
Engineering & Computer Science
(AREA)
Mining & Mineral Resources
(AREA)
Life Sciences & Earth Sciences
(AREA)
General Life Sciences & Earth Sciences
(AREA)
Geochemistry & Mineralogy
(AREA)
Geology
(AREA)
Duct Arrangements
(AREA)
Rigid Pipes And Flexible Pipes
(AREA)
Abstract
Improvements introduced in the manufacture of pipes for the conduction of air or other gases, characterized in that they are formed by the assembly of component parts that can be placed one inside the other for transportation. (Machine-translation by Google Translate, not legally binding)
ES0226200A1955-01-211956-01-20Ducting for conveying air or other gases
ExpiredES226200A1
(en)
Procedure to increase the strength of the ash skeletons of incandescent bodies in lighting appliances (Machine-translation by Google Translate, not legally binding)