Fingerprint detection
Patent
·
OSTI ID:7297057
This patent describes a method for detection and visualization of latent fingerprints. It comprises contacting a substrate containing a latent print thereon the a colloidal metal composition at a pH from about 2.5 to about 4.0 for time sufficient to allow reaction of the colloidal metal composition with the latent print; and, preserving or recording the observable print.
- Assignee:
- NOV; EDB-92-138860; NOV-92-034471
- Patent Number(s):
- A; US 5079029
- Application Number:
- PPN: US 7-366951
- OSTI ID:
- 7297057
- Country of Publication:
- United States
- Language:
- English
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