31. These " tattoos " contains the last 8 alphanumeric characters that comprise the serial number of the car. 32. Some eggcrate displays use a complete 5? matrix for each digit, permitting the display of nearly all alphanumeric characters . 33. Completely " safe " transliteration schemes replace all non-alphanumeric characters ( such as $'; * ) with alphanumeric characters. 34. My floating point number is for example 74.00594 and I need it represented in at most 5 alphanumeric characters . 35. Completely " safe " transliteration schemes replace all non-alphanumeric characters ( such as $'; * ) with alphanumeric characters . 36. None of them look to be any actual alphanumeric characters . . . here is the string in question, pasted: 37. Logical device names consisted of 1 3 alphanumeric characters and were used in the place of a physical device name. 38. Each country can have a different national routing / account numbering system, up to a maximum of 30 alphanumeric characters . 39. By this time maps were'squared'and a target location could be reported from the air using alphanumeric characters transmitted in Morse code. 40. Uppercase, alphanumeric character of the filename and " X " represents an upper-case, alphanumeric character of the extension ( filetype ).