Ernest V. Hart

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West Hartford, CT, US

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Patents Grantslast 30 patents

Information Patent Grant
Ionization smoke detector and alarm system
- Patent number 4,037,206
- Issue date Jul 19, 1977
- Emhart Industries, Inc.
- John Dobrzanski
- G08 - SIGNALLING
Information Patent Grant
Ionization smoke detector and alarm system
- Patent number 3,934,145
- Issue date Jan 20, 1976
- Emhart Corporation
- John Dobrzanski
- G08 - SIGNALLING