The reference book contains basic information that should always be at the hands of the designer of accurate mechanical devices. The handbook contains 9 sections: I - Elementary mathematics and mathematical tables; II - Measures of values; III - Tolerances and fits; IV - Permanent joints; V - Detachable connections; VI - Guides for rotary motion; VII - Guides for rectilinear movement; VIII - Elements of motion transmissions; IX - Springs; X - Tables of physical and mechanical properties of materials...