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1.
Inventor's Manual: How To Work A Patent To Make It Pay (1901) by An Experienced And Successf... ISBN: 9781104870447 List Price: $19.95
2.
Inventor's Manual: How To Work A Patent To Make It Pay (1901) by An Experienced And Successf... ISBN: 9781104932343 List Price: $34.95
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Inventorã¢Â¬Â¢S Manual : How to Work A Patent to Make It Pay (1901) by An Experienced And Successf... ISBN: 9781166157111 List Price: $15.96
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Inventor's Manual : How to Work A Patent to Make It Pay (1901) by An Experienced And Successf... ISBN: 9781166216955 List Price: $27.96