Robert F. Christian

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San Francisco, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Screw conveyer and furnace
- Patent number 4,504,222
- Issue date Mar 12, 1985
- Jude Engineering, Inc.
- Robert F. Christian
- F26 - DRYING
Information Patent Grant
Conveyor for removal of bed drain material from a coal-burning flui...
- Patent number 4,408,944
- Issue date Oct 11, 1983
- Jude Engineering, Inc.
- Robert F. Christian
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES