G - Physics – 01 – N
Patent
G - Physics
01
N
340/124.3
G01N 27/72 (2006.01) G01V 15/00 (2006.01) G08B 13/24 (2006.01)
Patent
CA 2034045
ABSTRACT OF THE DISCLOSURE A ferromagnetic marker for an electronic surveillance system is magnetically biased so that the magnetic fields of two different regions thereof extend in different direction, e.g. in opposite directions.
Cordery Robert A.
Kilmartin William L.
Zeller Claude
Macrae & Co.
Pitney Bowes Inc.
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