Lawrence J. Davenport

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Downey, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Ophthalmic progressive power lens and method of making same
- Patent number 4,418,992
- Issue date Dec 6, 1983
- Younger Manufacturing Company
- Lawrence J. Davenport
- G02 - OPTICS
Information Patent Grant
Ophthalmic progressive power lens and method of making same
- Patent number 4,274,717
- Issue date Jun 23, 1981
- Younger Manufacturing Company
- Lawrence J. Davenport
- G02 - OPTICS