Center Rock
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Center Rock
Center Rock, Inc. is a manufacturer of Boring (earth), drilling equipment headquartered in Berlin, Pennsylvania. The company was founded in 1998 by Brandon W. Fisher. Center Rock made headlines in 2002 when its equipment was instrumental in the Quecreek Mine Rescue in Pennsylvania, in which nine miners were rescued after being trapped for 78 hours in a flooded mine. In 2010, Center Rock assisted in the rescue of 33 miners trapped for 69 days as a result of the 2010 CopiapĆ³ mining accident, CopiapĆ³ mining accident in Chile. The company provided a special hammer bit for the drill that enabled a rescue shaft to be completed much faster than originally anticipated. References {{reflist External linksCompany siteLow-profile Drill
Construction equipment manufacturers of the United States ...
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Private Company
A privately held company (or simply a private company) is a company whose shares and related rights or obligations are not offered for public subscription or publicly negotiated in the respective listed markets, but rather the company's stock is offered, owned, traded, exchanged privately, or Over-the-counter (finance), over-the-counter. In the case of a closed corporation, there are a relatively small number of shareholders or company members. Related terms are closely-held corporation, unquoted company, and unlisted company. Though less visible than their public company, publicly traded counterparts, private companies have major importance in the world's economy. In 2008, the 441 list of largest private non-governmental companies by revenue, largest private companies in the United States accounted for ($1.8 trillion) in revenues and employed 6.2 million people, according to ''Forbes''. In 2005, using a substantially smaller pool size (22.7%) for comparison, the 339 companies on ...
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