ROBERTO STEFANO PASQUALE KING,PAUL FRANCIS KELLY,STEVEN GEOFFREY THORNGATE
申请号：
US16492704
公开号：
US20200046266A1
申请日:
2018.03.14
申请国别(地区):
US
年份:
2020
代理人:
摘要：
The present invention provides a method for the production of a metal halide adduct of S4N4, in particular a specific copper adduct of S4N4, for the visualisation of a print on an object, in particular a fingerprint on a metal object. The present invention also provides a method and apparatus for visualising a print on an object, using S2N2 obtained from a metal halide adduct of S4N4.
