GR

Gerhard Ritzerfeld

Overall (All Time): #4,077,297 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4354757 Xerographic or electrostatic copying apparatus capable of copying only selected lines, paragraphs or other such sections of an original 1982-10-19