SINOPSIS DEL LIBRO

The object of this book is to enable the beginner to learn to make simple mechanical drawings without the aid of an instructor and to create an interest in the subject by giving examples such as the machinist meets with in his every-day workshop practice The plan of representing in many examples the pencil lines and numbering the order in which they are marked the author believes to possess great advantages for the learner since it is the produci...Seguir leyendo