Method and apparatus for maintaining confidential printed-sheet output

An apparatus and method to provide confidentiality for the message content in copy received from an electrographic device is disclosed. Confidentiality is communicated to the apparatus by utilizing a confidentiality code mark on the first and last sheets of a set of copy for which privacy is desired...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	GEGENHEIMER, HAROLD W, ROBERTS, WEBSTER C
Format:	Patent
Sprache:	eng
Schlagworte:	ADVERTISING CINEMATOGRAPHY CODING OR CIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHERPURPOSES INVOLVING THE NEED FOR SECRECY CRYPTOGRAPHY DISPLAY EDUCATION ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY ELECTROGRAPHY ELECTROPHOTOGRAPHY HOLOGRAPHY MAGNETOGRAPHY PHOTOGRAPHY PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION SEALS
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