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Andrew W. Doan
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Madison Heights, VA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Tracer, clamp, and object engager for holding and tracing a lens mo...
Patent number
6,618,952
Issue date
Sep 16, 2003
National Optronics, Incorporated
Daniel E. Andrews
B24 - GRINDING POLISHING
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Patent Grant
Tracer, clamp and object engager for holding and tracing a lens mou...
Patent number
6,243,960
Issue date
Jun 12, 2001
National Optronics, Incorporated
Daniel E. Andrews
B24 - GRINDING POLISHING
Information
Patent Grant
Eyeglass frame tracer
Patent number
D435053
Issue date
Dec 12, 2000
National Optronics, Incorporated
Daniel E. Andrews
D15 - Machines not elsewhere specified
Patents Applications
last 30 patents
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Patent Application
Tracer, clamp, and object engager for holding and tracing a lens mo...
Publication number
20020166247
Publication date
Nov 14, 2002
Daniel E. Andrews
G01 - MEASURING TESTING