By Sensing Auxiliary Features On Record Carriers Or Containers, E.g. To Stop Machine Near The End Of A Tape {g11b 15/06} Patents (Class G9B/15.008)

Cross-Reference Art Collections

On containers [n: see provisional also g9b/15.008] {g11b 15/07} (Class G9B/15.009)
By photoelectric sensing (g9b/15.009 takes precedence) {g11b 15/08} (Class G9B/15.01)

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