Inventor

HIEBER HELMUT

DE2 patents

⚠️ This page may combine multiple inventors who share the name “HIEBER HELMUT”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HIEBER HELMUT

1 patent

US4155766AMay 22, 1979

Half tone screen for rotary gravure printing

HIEBER HELMUT11 citations64

EFHA KOHINOOR

1 patent

US4674838AJun 23, 1987

Contact screen for contrast control

EFHA KOHINOOR2 citations43