Micro-trak Systems, Inc.

Jeffry M Irish

Thomas K Hiniker

Semor D Tofte

S David Tofte

A method and apparatus for locating two corresponding points on opposite sides of a wall, floor, or other structural component. A transmitter transmits a electromagnetic signal indicative of a first point located on one side of the component, a signal receiver on the other side of the component generates an electrical signal proportionate to the strength of the electromagnetic signal, and a display outputs a maximum reading when the signal receiver indicates a maximum electromagnetic signal. The sensitivity of the display may be adjusted. The transmitter, receiver, and display may be structurally integrated when not in use. The transmitter is attached to the first side of the structural component at the first point, the receiver is moved along a second side of the structural component, and the receiver is moved along the second side to a location indicated by a maximum display.

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Nicolet, MN, United States of America

Jeffry M Irish