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.)
Electro Hydraulics Ltd
Original Assignee
Electro Hydraulics Ltd
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 Electro Hydraulics LtdfiledCriticalElectro Hydraulics Ltd
Priority to ES0304729ApriorityCriticalpatent/ES304729A1/en
Publication of ES304729A1publicationCriticalpatent/ES304729A1/en
"Advance support for roof of mine", characterized by having guide members slidably coupled to each frame, the guide members being interconnected by upper and lower link members spaced apart and arranged to allow a relative vertical movement of the frame. (Machine-translation by Google Translate, not legally binding)
ES0304729A1964-10-071964-10-07Advanced support for mine ceiling (Machine-translation by Google Translate, not legally binding)
ExpiredES304729A1
(en)