Inventor
LILLY A CLIFTON JR
US3 patents
Patents
3 patentsUS4236062ANov 25, 1980
Apparatus for electrical perforation of webs
PHILIP MORRIS INC14 citations68
US4166973ASep 4, 1979
Method and system for detection of thin metal layers in packaged articles
PHILIP MORRIS INC16 citations67
US4207458AJun 10, 1980
Method of electrically perforating a planar web
PHILIP MORRIS INC9 citations66