Inventor

KEO JANE

TW3 patents

Patents

3 patents

US5058242AOct 22, 1991

Pen holder for a clip-board

LIU DAVID27 citations90

US4896927AJan 30, 1990

Combination clip-board and case

LIU DAVID29 citations90

US4961249AOct 9, 1990

Clipboard structure

LIU DAVID16 citations71