| CPC H05K 13/086 (2018.08) [B65G 1/137 (2013.01)] | 5 Claims |

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1. A holder management device comprising:
a storage device configured to store a tray in which a component holder is accommodated and a work machine that performs work by using the component holder accommodated in the tray in correlation with each other;
a placement section on which the tray is placed;
a transfer device configured to transfer the component holder used in the work machine stored in the storage device in correlation with the tray to the tray placed on the placement section; and
a display device configured to display information indicating a tray to be placed on the placement section together with information indicating a work machine stored in the storage device in correlation with the tray, and in a case where the storage device stores multiple types of trays and work machines in correlation with each other, to display information indicating the multiple types of trays together with information indicating the work machines stored in the storage device in correlation with the multiple types of trays.
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