| 摘要 |
PCT No. PCT/US81/01110 Sec. 371 Date Apr. 17, 1983 Sec. 102(e) Date Apr. 17, 1983 PCT Filed Aug. 17, 1981.A security document such as an identification card including a base layer having at least one surface bonded and security markings printed on that surface. The bonded surface is covered by a protective layer including a film of material fused thereto so as to form a matrix encapsulating the printed security markings (which may include a xerographically reproduced photograph). |
