NE

Nancy Davenport, executrix

YM Younger Mfg.: 1 patents #12 of 20Top 60%
Overall (All Time): #4,061,785 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4418992 Ophthalmic progressive power lens and method of making same Lawrence Davenport 1983-12-06