Robert G. Littlefield

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Vienna, VA, US

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Patents Grantslast 30 patents

Information Patent Grant
De-icing system
- Patent number 6,231,313
- Issue date May 15, 2001
- Tanner Systems, Inc.
- Arnold M. Heitmann
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
"V" filter cleaning lance
- Patent number 5,133,105
- Issue date Jul 28, 1992
- Ingersoll-Rand Company
- Robert G. Littlefield
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...