In 1871, Hieronymus Mueller, founder of Mueller Co., invented and patented the first machine for drilling, tapping and inserting corporation stops in mains under pressure. This invention revolutionized the method of making main to service connections under pressure and also established what has proven to be the most successful principle for machines of this type. This has been proven by the fact that Mueller® machines are the accepted standard by most water companies, plumbers, and plumbing contractors. Mueller Co. has taken the original tapping machine features and refined, expanded and incorporated them into additional machines for other conditions and purposes. Mueller Co. offers the most complete line of time proven drilling and tapping machines available.
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