Labels:book | door | earth | hakham | plant | road | sky | stairs | windowpane OCR: BOOK OF INVENTORS On a letter page in the book ofinventors, you can choose the inventor that you would like to read about Workahop Machines THRtOr WANCOY 16 RIGHT-HAND PAGE TURN Clicking here takes you to the next page. Opelon HELP CONTENTS Thingt Work bere