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Hanging or shifting means for tubes, electric feeding cables or the like
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Industry
CPC
E21D23/0463
This industry / category may be too specific. Please go to a parent level for more data
Parent Industries
E
FIXED CONSTRUCTIONS
E21
Mining
E21D
SHAFTS TUNNELS GALLERIES LARGE UNDERGROUND CHAMBERS
E21D23/00
Mine roof supports for step- by- step movement
Current Industry
E21D23/0463
Hanging or shifting means for tubes, electric feeding cables or the like
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Patents Grants
last 30 patents
Information
Patent Grant
Longwall mine construction method N00
Patent number
10,494,924
Issue date
Dec 3, 2019
Manchao He
E21 - EARTH DRILLING MINING
Information
Patent Grant
Apparatus for mining a seam, in particular of coal
Patent number
5,474,365
Issue date
Dec 12, 1995
Peter von Linsingen-Heintzmann
E21 - EARTH DRILLING MINING
Information
Patent Grant
Canopy and shield structure for a supporting shield in a seam-like...
Patent number
4,136,999
Issue date
Jan 30, 1979
Thyssen Industrie AG
Manfred Koppers
E21 - EARTH DRILLING MINING
Information
Patent Grant
Canopy and shield structure for supporting a shield in a seam-like...
Patent number
4,089,181
Issue date
May 16, 1978
Thyssen Industrie AG
Manfred Koppers
E21 - EARTH DRILLING MINING
Information
Patent Grant
Hydraulic shield assembly
Patent number
4,064,701
Issue date
Dec 27, 1977
Herman Hemscheidt Maschinenfabrik
Hans-Otto Friedrichs
E21 - EARTH DRILLING MINING
Information
Patent Grant
3329097
Patent number
3,329,097
Issue date
Jul 4, 1967
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Patents Applications
last 30 patents
Information
Patent Application
LONGWALL MINE CONSTRUCTION METHOD N00
Publication number
20180187547
Publication date
Jul 5, 2018
Manchao He
E21 - EARTH DRILLING MINING