Hello, there to everybody!

Please amend this topic, if I opened a new thread which already exists, but I searched a lot the forum and I didn't found anything similar.

So this is my question:
I wondering if there is any possibility to convert automatically a specific pattern of lines, polylines, circles etc. to block. Let's say, I have a symbol of a light bulb (made from a circle with two cross lines inside) and I want to convert all these symbols in the drawing (which have the same dimensions) to a block named "bulb". I am asking to much from this powerful software. Is it possible?

Let me explain this better. It is about a drawing which has let's say 428 symbols made from lines and circles. Another 100 symbols made from another circles, lines and/or polylines I was wondering if there is any method to scan the entire drawing for the similar symbols (based on a reference) and convert these symbols (group of lines and circles) into blocks. For example above, two different blocks converted from two type of symbols made from primitive objects.

Indeed, it looks difficult. I have to blame the designer who worked a lot to make these drawings, but haven't in his mind to use blocks. It was much more easier for me to count the objects... I will go straight and I do the old fashion: count the symbols on the paper, or I will check if DATAEXTRACTION command will help me (maybe the lines and the circles in the symbols are unique like dimensions, area etc).

Thank you anyway!