| http://www.w3.org/ns/prov#value | - In the illustrated embodiment, the detecting means 34 is therefore positioned to receive light emitted from the emitting means 32, by way of the through bore 58, 60, when a gap, such as gaps 24 and 26, caused by a reversely oriented can end, comes into alignment with the through bore 58, 60 as the reversely oriented can end travels through the conduit 44.
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