| 主权项 |
1. A page lock system for preventing uncontrolled reading of printed material, said system comprising:
a first sheet of material having a first sheet major surface extending along a front surface of said first sheet, and a first sheet outer periphery surrounding said first sheet major surface; and a second sheet of material having a second sheet major surface extending along a rear surface of said second sheet, and a second sheet outer periphery surrounding said second sheet major surface; said first sheet of material being attachable to said second sheet of material along at least a portion of (i) said first sheet outer periphery and (ii) said second sheet outer periphery so as to form a sealed enclosure sized to house a piece of printed material and having an overall thickness extending from said front surface to said rear surface; wherein (1) at least one of said first sheet major surface and said second sheet major surface further comprises a slot extending therethrough along a length thereof, each slot being sized to enable (i) one or more covers or (ii) one or more covers and one or more pages of the piece of printed material to extend therethrough, or (2) at least one of said first sheet major surface and said second sheet major surface further comprises a barcode along an outer surface thereof, said barcode providing electronic data relating to the piece of printed material, or (3) both (1) and (2). |
