go to a gm dealer with your serial number
If you mean a serial number on some product, it depends on what the product is. Each company can makes serial numbers mean anything they want it too.
It means that it is a duplicate serial number
It's part of the serial number.
You have a serial number of 00000 the letters NW mean your BPS was made in 1994.The B52 could be referring to the model number.
This is the serial number. Each bill has a unique serial number that identifies it.
Could be a serial number or assembly number
9700253
645998
Serial number
Gun Registration...
If it's a used guitar, it may mean "excellent condition" and would not be part of the serial number.