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PCE
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CPC Subgroup
G03B 23/14

Carriers operable to move pictures into, and out of, the projection or viewing position and carrying one or two pictures only in a removable manner (G03B23/18 takes precedence)

Full Title

Devices for changing pictures in viewing apparatus or projectors > Carriers operable to move pictures into, and out of, the projection or viewing position and carrying one or two pictures only in a removable manner (G03B23/18 takes precedence)