SELECTIVELY MOVABLE ELEMENT HAVING CODE CHARACTERS:
(under the class definition) Subject matter for encrypting a message signal which is composed of distinct intelligible characters which are visibly positioned on relatively movable surfaces to enable transposing or substituting such characters.
(1) Note. The term "character" is intended to mean at least a distinct intelligible element, but also includes phrases, numbers, etc., as the intelligence bearing or the encrypted message
