Magnetic metallic safeguarding thread with negative writing and

Details Magnetic metallic safeguarding thread with negative writing and Magnetic metallic safeguarding thread with negative writing and

1994-08-02

1997-02-04

Vo, Peter

Printed matter

Having revealable concealed information, fraud preventer or...

Utilizing electromagnetic radiation

283 82, 283 83, 283901, 427131, 428915, B42D 1502

Patent

active

055990479

ABSTRACT:
The invention relates to a security document, in particular a bank note, identity card or the like, having a security element which is provided with characters, patterns, etc., visually readable at least in transmitted light and which is electrically conductive and bears additional substances for machine testing, and to a method for producing such a security element. The security element preferably consists of a transparent film strip that bears negative writing readily capable of visual checking and is additionally provided with electrically conductive and magnetic substances.

REFERENCES:
patent: 4183989 (1980-01-01), Tooth
patent: 4428997 (1984-01-01), Shulman
patent: 4455039 (1984-06-01), Weitzen et al.
patent: 4507346 (1985-03-01), Maurer et al.
patent: 4609207 (1986-09-01), Muck et al.
patent: 4631222 (1986-12-01), Sander
patent: 4631223 (1986-12-01), Sander
patent: 4941687 (1990-07-01), Crane
patent: 4943093 (1990-07-01), Melling et al.
patent: 5113062 (1992-05-01), Fujita et al.
patent: 5388862 (1995-02-01), Edwards
WO 90/13877, Klunker et al., Nov. 1990.
WO 92/11142, Klunker et al., Jul. 1992.

Affiliated with

Also associated with

Rating

Magnetic metallic safeguarding thread with negative writing and does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magnetic metallic safeguarding thread with negative writing and , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic metallic safeguarding thread with negative writing and will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-672796