Item #67900 THE INVENTOR'S UNIVERSAL EDUCATOR. An Educational Cyclopaedia and Guide. Fred. G. Dieterich, compiler.

THE INVENTOR'S UNIVERSAL EDUCATOR. An Educational Cyclopaedia and Guide. For Inventors, Patentees, Manufacturers, Mechanics, and All Others Directly or Indirectly with Patents.

Washington, D.C. By the Author, 1911. Item #67900

143p, decorated cloth, illustrated, light wear to edges, good. Includes section on aviation.

Price: $12.50

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