There was resistance - in England, carpenters unions went on strike over the use of electric saws, fearing the end of their livelihoods.
Nevertheless, by the 1950's, power tools were used in almost all furniture construction across Great Britain.
Here is an early example of machine-cut dovetails on a 1920's sideboard from a dining set: European cabinetmakers continued to produce hand-cut dovetails through the 1930's.
Electric power tools, like routers and various types of saws were put into widespread use after World War II in the 1940's.
The earliest examples are from furniture placed with mummies in Egypt thousands of years ago, and also in the burials of ancient Chinese emperors.