Formula for unique list alphabetized

I would like a formula that will give me the unique list of items in Col A but will give them to me in alphabetical order. Sample list of data and desired result below.

List of Items Desired Result
Lamp Chair
Table Desk
Chair Filing Cabinet
Filing Cabinet Lamp
Lamp Phone
Desk Table
Phone
Chair

Thanks for the help.

Assumed you data in ranges A1:A9 including Column Header, put this on B2:

=IFERROR(INDEX($A$2:$A$9,MATCH(0,COUNTIF($A$2:$A$9,"<"&$A$2:$A$9)-SUM(COUNTIF($A$2:$A$9,"="&B$1:B1)),0)),"")

Array Formula (press CTRL-SHIFT-ENTER button together) and dragged down

Thank you Azumi. Worked perfectly.

Thank you too for nice feedback