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Norman C. Elfer
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Pearl River, LA, US
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last 30 patents
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Patent Grant
High performance, thin metal lined, composite overwrapped pressure...
Patent number
RE38433
Issue date
Feb 24, 2004
Lockheed Martin Corporation
Ellis C. Seal
029 - Metal working
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Patent Grant
High performance, thin metal lined, composite overwrapped pressure...
Patent number
6,401,963
Issue date
Jun 11, 2002
Lockheed Martin Corporation
Ellis C. Seal
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Patent Grant
High performance, thin metal lined, composite overwrapped pressure...
Patent number
5,822,838
Issue date
Oct 20, 1998
Lockheed Martin Corporation
Ellis C. Seal
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL