ES328046A2 - Una disposicion de carriles de guia para establecer la trayectoria de avance de unidades de apuntalamiento destinada a explotaciones bajo tierra.
- Google Patents
Una disposicion de carriles de guia para establecer la trayectoria de avance de unidades de apuntalamiento destinada a explotaciones bajo tierra.
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.)
Groetschel Karl Ma
Original Assignee
Groetschel Karl Ma
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 Groetschel Karl MafiledCriticalGroetschel Karl Ma
Priority to ES0328046ApriorityCriticalpatent/ES328046A2/es
Publication of ES328046A2publicationCriticalpatent/ES328046A2/es
ES0328046A1966-06-171966-06-17Una disposicion de carriles de guia para establecer la trayectoria de avance de unidades de apuntalamiento destinada a explotaciones bajo tierra.
ExpiredES328046A2
(es)