for making briquettes

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Patents Grantslast 30 patents

Information Patent Grant
Grinding sludge compacting machine
- Patent number 7,017,478
- Issue date Mar 28, 2006
- NTN Corporation
- Kanji Nakamura
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Recycle of grinding sludge
- Patent number 6,874,411
- Issue date Apr 5, 2005
- NTN Corporation
- Kanji Nakamura
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Grinding sludge compacting machine
- Patent number 6,745,679
- Issue date Jun 8, 2004
- NTK Corporation
- Kanji Nakamura
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Hand pressing device for making fuel briquettes from soaked paper
- Patent number 4,461,626
- Issue date Jul 24, 1984
- Erik Foldbjerg
- B30 - PRESSES
Information Patent Grant
Consolidation of coal slurry
- Patent number 4,208,188
- Issue date Jun 17, 1980
- Signet Corporation
- Perry J. Dick
- B30 - PRESSES
Information Patent Grant
3605606
- Patent number 3,605,606
- Issue date Sep 20, 1971
- B30 - PRESSES
Information Patent Grant
3070485
- Patent number 3,070,485
- Issue date Dec 25, 1962
- B30 - PRESSES
Information Patent Grant
2350291
- Patent number 2,350,291
- Issue date May 30, 1944
- B30 - PRESSES