Carbon-free duplicating paper with hidden shadow

Carbon-free duplicating paper with hidden shadow

  • CN 1,112,880 A
  • Filed: 10/08/1994
  • Published: 12/06/1995
  • Est. Priority Date: 10/08/1994
  • Status: Abandoned Application
First Claim
Patent Images

1. , a kind of NCR with latent image comprises NCR, it is characterized in that:

  • increasing on the carbonless copying body paper has specific sign figure latent image.

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