Counterfeit detector for paper currency

Electricity: measuring and testing – Magnetic – With means to create magnetic field to test material

Patent

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Details

209534, G07O 700

Patent

active

041874633

ABSTRACT:
A detector apparatus for counterfeit paper currency comprising a clamp and torsion pendulum assembly for holding a note to be tested, a moveable magnetic field source mounted so that it can be brought into contact with the note and then withdrawn, and indicating means for detecting and measuring deflection of the note.

REFERENCES:
Stipulation; Civil Action #44,022, U.S. District Ct., Northern District of Calif., Micro-Magnetic Industries vs. National Rejectors; Filed Jan. 10, 1970, 8 pages.

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