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Class Information
Number: 175/49
Name: Boring or penetrating the earth > With signaling, indicating, testing or measuring > Transparent inspection feature
Description: Subject matter comprising a step or means for encasing a part of the boring means or cuttings in a transparent enclosure such that said enclosed boring means or cuttings may be visually observed or inspected.

Patents under this class:

Patent Number Title Of Patent Date Issued
7258782 Apparatus for sampling filter layer and method using the same Aug. 21, 2007
6908262 Systems and methods for driving large diameter caissons Jun. 21, 2005
6820701 Visual probes and methods for placing visual probes into subsurface areas Nov. 23, 2004
6115061 In situ microscope imaging system for examining subsurface environments Sep. 5, 2000
5589825 Logging or measurement while tripping Dec. 31, 1996
5543972 Mirror for producing a development picture of the wall of a borehole in the ground and device therefor Aug. 6, 1996
5123492 Method and apparatus for inspecting subsurface environments Jun. 23, 1992
5076372 Under frame mounted soil sampler for light trucks Dec. 31, 1991
4896726 Slip stream device Jan. 30, 1990
4796697 Slip stream device Jan. 10, 1989

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