Tag Archives: Number-letter

Number-letter relation table for cipher and telephone number with letters

Application Number: 00109871Application Date: 2000.07.10Publication Number: 1332558Publication Date: 2002.01.23Priority Information: International: H04M1/00Applicant(s) Name: Chen AiwenAddress: Inventor(s) Name: Chen Aiwen;Zhou JingziPatent Agency Code: 00000Patent Agent: Abstract The 26 letters are divided to 10 groups corresponding to the 10 digitals of 0-9, and corresponding relation table is formed as the keyboard for cipher machine, telephone set and… Read More »