with individual shifting devices

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Industries

Patents Grantslast 30 patents

Information Patent Grant
Mining shield base lift apparatuses and methods
- Patent number 11,772,209
- Issue date Oct 3, 2023
- Swanson Industries, Inc.
- Christopher Scott Larew
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Mine roof support assembly
- Patent number 4,526,495
- Issue date Jul 2, 1985
- Gewerkschaft Eisenhutte Westfalia
- Kunibert Becker
- E21 - EARTH DRILLING MINING
Information Patent Grant
3921409
- Patent number 3,921,409
- Issue date Nov 25, 1975
- E21 - EARTH DRILLING MINING
Information Patent Grant
3590586
- Patent number 3,590,586
- Issue date Jul 6, 1971
- E21 - EARTH DRILLING MINING
Information Patent Grant
3589241
- Patent number 3,589,241
- Issue date Jun 29, 1971
- E21 - EARTH DRILLING MINING