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Show . ; I'ay Up, Hours Down As more inventions and ma-c:hinr-s have been introduced into industry, the average earnings of Americans have risen steadily, and their working hours have declined. Patents that encourage? technical advances have abolished heavy rninuel labor in most industrial . plants. I'liuh-buttons have replaced back-straining. And, by making It possible to produce more in less time, patents open the door to greater leisure time for family living liv-ing and recreation for the average employee. |