Bar code label
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United States of America Patent
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Dec 7, 1993
Issued Date -
N/A
app pub date -
Mar 16, 1992
filing date -
Jan 31, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A bar code label has a base in which recesses are engraved each in a predetermined shape corresponding to the information to be recorded. The base is protected by a coating of a non-magnetic material which prevents corrosion of the bar code label and allows it to be easily cleaned. Information can be accurately recorded and preserved on the bar code label for a long period of time as a result of the protective coating. Additionally, a bar code reader is used to easily and accurately read the bar code label. The bar code reader incorporates a magnetic sensor to detect a magnetic field charge.
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