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Howard M. Franklin
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Palo Alto, CA, US
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last 30 patents
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Patent Grant
Modular precast construction block system
Patent number
6,098,357
Issue date
Aug 8, 2000
Megawall Corporation
Howard M. Franklin
E04 - BUILDING
Information
Patent Grant
Modular precast wall system
Patent number
5,924,254
Issue date
Jul 20, 1999
Megawall Corporation
Howard M. Franklin
E04 - BUILDING
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Patent Grant
Modular precast wall system with mortar joints
Patent number
5,678,373
Issue date
Oct 21, 1997
Megawall Corporation
Howard M. Franklin
E04 - BUILDING