С момента подписания обеими Сторона

С момента подписания обеими Сторонами Акта право собственности на все экземпляры такой Программы переходит от Исполнителя к Заказчику.

Результаты (английский) 1:

From the date of signature by both Parties Act ownership of all copies of such a program goes from the performer to the customer.

Результаты (английский) 2:

Since the signing by both parties of the Act title to all copies of such a program is transferred from the Contractor to the Customer.

Результаты (английский) 3:

since the signing of the two sides of the ownership of all copies of such a program is transferred from the director to the customer.