Вставить слова! 1)many american inventors tried to find ways to ease the process of washing. by 1873, some 2,000 patents _ for washing machines. most of these machines _ clumsy devices от draydray. (were\ had been issued)

Many American inventors tried to find ways to ease the process of washing. By 1873, some 2,000 patents had been issued for washing machines. Most of these machines were clumsy devices.