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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Zaklady K Mechanizacyjne P W
Original Assignee
Zaklady K Mechanizacyjne P W
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Filing date
Publication date
Priority claimed from PL112943Aexternal-prioritypatent/PL53956B1/pl
Application filed by Zaklady K Mechanizacyjne P WfiledCriticalZaklady K Mechanizacyjne P W
Publication of ES337611A1publicationCriticalpatent/ES337611A1/es
E21C29/00—Propulsion of machines for slitting or completely freeing the mineral from the seam
E21C29/04—Propulsion of machines for slitting or completely freeing the mineral from the seam by cable or chains
E21C29/20—Propulsion of machines for slitting or completely freeing the mineral from the seam by cable or chains with safety devices operating in the event of breakage of the cable or chain
Landscapes
Engineering & Computer Science
(AREA)
Mining & Mineral Resources
(AREA)
Mechanical Engineering
(AREA)
Life Sciences & Earth Sciences
(AREA)
General Life Sciences & Earth Sciences
(AREA)
Geochemistry & Mineralogy
(AREA)
Geology
(AREA)
Fluid-Pressure Circuits
(AREA)
Electromagnetic Pumps, Or The Like
(AREA)
Regulating Braking Force
(AREA)
Rotary Pumps
(AREA)
ES337611A1966-02-141967-02-14Perfeccionamientos en los cabrestantes de seguridad.
ExpiredES337611A1
(es)