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MSI
PLESSEY This linear, numeric code is a variation of the
Plessey code developed in England. It has been used for grocery and library
shelf labels.MSI is a pulse-width modulated, no-self-checking code. Each
character consists of eight elements, four bars and four spaces. The character
set includes the digits 0 through 9. A Modulo 1- checksum is appended to
the end of the code.
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