Thomas J. O'Donnell

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Plainfield, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Multi-station dangerous condition alarm system incorporating alarm...
- Patent number 6,121,874
- Issue date Sep 19, 2000
- Thomas J. O'Donnell
- G08 - SIGNALLING
Information Patent Grant
Multi-station dangerous condition alarm system incorporating alarm...
- Patent number 5,933,078
- Issue date Aug 3, 1999
- Ranco Inc. of Delaware
- Thomas J. O'Donnell
- G08 - SIGNALLING