What is "dittoed"

Usage examples of "dittoed".

Back in Kyohvic—“Misty Harbor,” as the helpful stab-in-the-dark translation says in squiggly italics on the sky-port sign, dittoed below in the barred neon of chi-chi Ogham—Matt Cairns shoulders his duffel bag and heads through the concourse for the shuttle train to town.

Here is a syllabus --" Herhands trembled as she handed out dittoed sheets.

Each week, Perkins dittoed off the ones he thought would make for the liveliest discussion and handed them out at the end of the class.