For example, well-known 
			aviator Charles Lindbergh had a second career as little-known 
			inventor Charles Lindbergh when he invented the heart fusion pump, 
			which led to open-heart surgery. Well-known comic Zeppo Marx became 
			little-known inventor Zeppo Marx with his two patented inventions; 
			one of them secured bombs in airplanes during World War II and the 
			other alerted cardiac patients to an irregular heartbeat.
			There are many more examples of inventors who had dual careers, 
			but J.B.'s career was just the opposite. You've heard of him because 
			of his invention; in fact, you've probably used the product that he 
			invented. But you probably didn't know that he was a veterinarian 
			before he gained worldwide notoriety as an inventor. 
			
			  
			J.B. was born in 1840 in Scotland, the same country that gave us 
			Alexander Graham Bell, Robert Louis Stevenson and Harry Potter 
			author J.K. Rowling. Lest you think I'm disguising his name from you 
			by using his first and last initials, "J" and "B" were his first and 
			middle initials.  
			People often went by their initials back then. J.B.'s initials 
			stand for John Boyd. I am hiding his last name from you because his 
			last name is synonymous with his product, and that would give it 
			away. I will give you a hint, though: J.B.'s invention was in the 
			rubber industry.  
			And that's the last time I'll ever use one of those words like 
			"lest" in this column, I promise. Only snooty people with foreign 
			accents use words like "lest" on a regular basis.  
			J.B. did not invent the material that made him famous, but he 
			figured out a much better way to use it.  
			
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			  Here's another hint as to J.B.'s identity: The material was used 
			in its natural form as far back as the 1400s in Latin America. 
			Christopher Columbus even noticed that the natives were playing with 
			it, and they also made shoes with the material. 
			If that clue doesn't give it away, then this one should just 
			about do it: It was originally known as "cahuchu." Gesundheit.  
			J.B.'s inspiration came while watching his son struggle to ride 
			his tricycle with its solid rubber wheels. He thought there must be 
			a better way, so he went about designing his own type of tire. His 
			invention became the modern-day inflatable tire, which J.B. invented 
			in 1888. His full name was John Boyd Dunlop. As in Dunlop Tires. 
			
			
			  
			Actually, the first inflatable tire was invented by another 
			Scottish inventor, R.W. Thomson in 1845 (there they go with those 
			initials again!). Thomson never developed his invention for 
			commercialization, though, so he is not well-known.  
			The word "rubber," by the way, got its name from pencil erasers 
			that are used to "rub out" mistakes.  
			[By
			PAUL NIEMANN] 
			Paul Niemann's column is syndicated 
			to more than 70 newspapers. He is the author of the "Invention 
			Mysteries" series of books. He can be reached at
			niemann7@aol.com.  
			Copyright Paul Niemann 2008 
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