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Patent drawing - Varco Schaffer Ram BOP Stack Public domain image

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Patent drawing - Varco Schaffer Ram BOP Stack Public domain image

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Summary

Patent Drawing for Varco Shaffer Shear Ram Assembly,
U.S. Patent 6,719,042 (2004), with legend added.
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Date

08/07/2002
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Source

USPTO
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Link

http://uspto.gov/
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Copyright info

public domain

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