Hollis Spence

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Bloomington, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Vacuum cleaner with improved assembly
- Patent number 5,414,893
- Issue date May 16, 1995
- Leonard D. Hampton
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Vacuum cleaner with improved assembly
- Patent number 5,383,252
- Issue date Jan 24, 1995
- White Consolidated Industries, Inc.
- Leonard B. Hampton
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Vacuum cleaner with improved assembly
- Patent number 5,309,601
- Issue date May 10, 1994
- White Consolidated Industries, Inc.
- Leonard D. Hampton
- F24 - HEATING RANGES VENTILATING