Hi, thank you for contacting JustAnswer.com. My name is Russell. I will do what I can to provide the right answer to your question.
What is your question, and what version or year of AutoCAD does it relate to, please?
It could possibly be what is called an Extrusion Cut marker.
But I am not sure of this. Does that sound likely or familiar? can you find a reference to that in the Help for your AutoCAD version, whatever version it is?
Then I admit, I cannot tell you what they are. It looks to me like a placement mark for something with a serial number or a lot number. But I don't know specifically.
In case another Expert does, I have Opted Out, opening this case up to all Experts in this category once again.
Hi, my name is ***** ***** I would love to help you with your question.
I found this info, might this let you do what you want?
Sorry, I don't have a copy of Autocad so I can't test it or I would.
If that solved your issue, great! I would appreciate it if you could please rate my answer. If not, let me know own and I will keep digging.