Calculator with timing function
2021 12/16
We have a utility model patent for this calculator. The timer function is added to the traditional calculator. Students study, office meetings, and do things more efficiently.
2021 12/16
Guangdong Shunde Zuncheng Electronic Technology Co., Ltd.
The PDF has been encrypted, and you need to enter the password for normal access.
We provide PDF for you to look at the catalog, and you need to provide an email address.