IL METALDETECTOR MIGLIORE: IL METALDETECTOR PIù POTENTE FOR EVERY ESPERTI E PRINCIPIANTI, IL GM7


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The fashionable progress on the metal detector commenced within the twenties. Gerhard Fischer had developed a method of radio course-obtaining, which was to be used for correct navigation. The program labored exceptionally well, but Fischer observed there were anomalies in regions wherever the terrain contained ore-bearing rocks. He reasoned that i

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