| http://www.w3.org/ns/prov#value | - The alternate coupling is accomplished by timing signals provided by a timing unit such as the timing unit 208 which was utilized in the system 200 of FIG. 3B. The printer 406 is understood to include the generator and other circuitry commonly found in bar code printers for converting the character command signal to a succession of lines of the bar (not shown).
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