Encryption template

Details Encryption template Encryption template

1992-12-22

1994-04-26

Barron, Jr., Gilberto

Cryptography

Selectively movable element having code characters

380 59, 283 17, G09C 102

Patent

active

053074149

ABSTRACT:
An encryption template has a grid of permanent openings thereon forming several arrays which are symmetrically located about a rotational axis, and members for selectively marking certain of the openings to be used for coding a message. Indicia carried on the template and the members facilitate the selection of the openings.

REFERENCES:
patent: 156851 (1874-11-01), Joseph et al.
patent: 166761 (1875-08-01), Flamm
patent: 185621 (1876-12-01), Berghold
patent: 1441109 (1923-01-01), Newell

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