Inventor
HICKENLOOPER FRANKLIN T
3 patents
Patents
3 patentsUS4089059AMay 9, 1978
Programmable calculator employing a read-write memory having a movable boundary between program and data storage sections thereof
HEWLETT PACKARD CO17 citations69
US4566072AJan 21, 1986
Programmable calculator including means for digitizing the position of an X-Y plotter pen
HEWLETT PACKARD CO3 citations58
US4330839AMay 18, 1982
Programmable calculator including means for automatically processing imformation stored on a magnetic record member
HEWLETT PACKARD CO2 citations57