Can i get the serial number of fujitsu scanners

dear all ,

iam trying to pull the serial number of 200 fujitsu scanners to the LANDesk Inventory

i can see simple information about these scanners in the inventory ( Manifacure , name , number ) because it is connected via USB

i went to Ports --> USB --> Device --> 3 --> ...

but i want to get the serial number but  :

1- the seriall number is not  written in the regisry 

2- i can see the serial if i go to control panel ---> scanners and cameras ---> right click fujitsu scanner  ---> go the tab device info ---> serial number

3- the vendor cant help till now

where is the Hero which will solve this ??????????????? !!!!!!!!!!!!!!!!!!!!!!!!

I am waiting  ........

Regards