Small inventions that make a big difference / 
photographs by Joseph H. Bailey ; art by John Huehnergarth. 
 - 104 p. :  ill. (some col.) ;  28 cm. 
 - Books for world explorers .
 - Books for world explorers. .
<br/><br/> Accompanied by "The patent game" (1 sheet [2] p. : col. ill. ; 75 x 49 cm. folded to 25 x 19 cm.).  Includes index. 
<br/><br/>Bibliography: p. 101. 
<br/><br/> Describes how inventors think and work, explains how one invention--plastic--has changed the world, and briefly discusses seventy-five other important inventions, from the jet engine to the potato chip. 
<br/><br/><label>ISBN: </label>0870444980 0870445030 
<br/><br/><label>LCCN: </label>83023770 /AC 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Inventions--Juvenile literature.<br/>Inventors--Juvenile literature.<br/>Inventions.<br/>Inventors.<br/>Plastics.
<br/><br/><label>LC Class. No.: </label>T212  / .S63 1984 
<br/><br/><label>Dewey Class. No.: </label>608