Standards
[CURRENT]
NF C90-401
; NF EN 60948:1991-09-01
NF C90-401
; NF EN 60948:1991-09-01
Numeric keyboard for home electronic systems (hes)
Title (German)
NUMERISCHE TASTATUR FUER HEIM-ELEKTRONIK-SYSTEME (HES). (EUROPAEISCHE NORM EN 60 948)