Apparatus for and method for marking objects, objects marked thereby and apparatus and method of reading marked objects
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Sep 9, 2003
Grant Date -
N/A
app pub date -
Jun 28, 2000
filing date -
Jun 28, 2000
priority date (Note) -
Expired
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Abstract
An apparatus for marking objects is disclosed. The apparatus comprises (a) a source device including a mother isotope for emitting daughter isotopes by radioactive decay; preferably (b) a positioning mechanism for positioning an object in close proximity to the source device; and (c) a patterning mechanism for restricting implantation of the daughter isotopes into a surface of the object, so as to create a detectable pattern of the daughter isotopes on the object.
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