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PATENTS

TRADEMARKS AND COPYRIGHTS
SECURED OR FEE RETURNED

Send model or sketch and description of your invention for
free search of the U. S. Patent Office records.

Our Four Books mailed Free to any address. Send for these books; the finest publications ever issued for free distribution. HOW TO OBTAIN A PATENT

Our Illustrated eighty page Guide Book is an invaluable book of reference for inventors and contains 100 mechanical movements illustrated and described.

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A PRACTICAL MINIATURE AUTO, propelled by a small
gasoline motor. The greatest instructive, mechanical device
ever invented. Boys all over the world now building Motor-
Bobs. Any boy of 12 years and up can build and operate the
Motor-Bob. Send 25 cents (coin preferred) for our complete
instruction booklet, "HOW TO BUILD A MOTOR-BOB,"
which contains simple drawings, diagrams, pictures, instruc-
tions for building and operating, and list of parts.
MOTOR-BOB MF'G CO., Dept. 4, Main and Amherst Sts., Buffalo, N. Y.

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