Notebook serial number

Ak by ste chceli vediet model a seriove cislo svojho notebooku:
 Serial Number: PF24KS2B
$ sudo dmidecode | grep -i serial
        Serial Number: 00000000
        Serial Number: 2C153768
        Serial Number: None
                Serial services are supported (int 14h)
        Serial Number: PF24KS2B
        Serial Number: L1HF0B201Z7
        Serial Number: PF24KS2B
        SBDS Serial Number: 0A4A
Model: ThinkPad T15 Gen 1
$ sudo dmidecode | grep -i sku
                Consumer SKU
        SKU Number: LENOVO_MT_20S6_BU_Think_FM_ThinkPad T15 Gen 1
        SKU Number: Not Specified