MH

Michael C. Hallmark

Overall (All Time): #1,622,834 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6273384 Chair back adjustment mechanism Roger Davies 2001-08-14
6238000 Mechanism for chair Simon Roberts 2001-05-29
5286088 Underseat mechanism for a chair Arthur G. Taylor 1994-02-15