| http://www.w3.org/ns/prov#value | - If desired, in any of these embodiments, the design of the article of manufacture (such as the cartridge) may be modified such as by providing a hinge between the upper and lower parts of an outer housing, such as the shell, so that both portions of the housing remain attached, and open like a clam shell, in order to facilitate such uses of the cartridge.
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