serial number

Hello, Is it possible to identify my phone serial number (the one on the box) not the one retrievable though *#06#, this is needed to register my phone in my country (weird I know). Note: Stupid me I've throw the box and the removed the sticker from the back of the phone. example of the SN...

hello.. I have k20 pro and I would like to know if the imei or the serial numbers written anywhere inside the hardware like under the cover or battery or on the chip? not in the software or on the box. so if any of them is written ....I would be thankful to know where it is exactly written...