David A. Welsh

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Largo, FL, US

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Patents Grantslast 30 patents

Information Patent Grant
Low vision lens assembly with adhesive coupling ring
- Patent number 5,381,190
- Issue date Jan 10, 1995
- Unilens Corp, U.S.A.
- Denis Rehse
- G02 - OPTICS
Information Patent Grant
Induction motor controller
- Patent number 4,629,960
- Issue date Dec 16, 1986
- Energy Motor Control, Inc.
- David A. Welsh
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER