Inventor

RIST III KARL FREDERICK

2 patents

Patents

2 patents

US4092817AJun 6, 1978

Film applying device with a straw-hole perforator

MINNESOTA MINING & MFG57 citations90

US4050971ASep 27, 1977

Device for fusing lengths of film over the open ends of cups

MINNESOTA MINING & MFG30 citations76