Ragnunatha S. Rao

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Lexington, KY, US

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Patents Grantslast 30 patents

Information Patent Grant
Tubular electric lamp having a lamp base sleeve with an access port...
- Patent number 5,241,239
- Issue date Aug 31, 1993
- North American Philips Corporation
- Ragnunatha S. Rao
- H01 - BASIC ELECTRIC ELEMENTS