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2014
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Invention
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Low-power satellite-timed seismic data acquisition system. A recording system and method for cond... |
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2013
|
Invention
|
Micro-geophone. A micro geophone having pole pieces do not extend out around the sides of the mag... |
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|
Invention
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Micro-geophone. A micro-geophone having pole pieces do not extend out around the sides of the mag... |
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2012
|
Invention
|
Thick film print head structure and control circuit. A new structure (FIG. 11) for a thick-film t... |
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2010
|
Invention
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Geophone having improved sensitivity. A geophone utilizing an Alnico-9 magnet and having an impro... |
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Invention
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Geophone having improved damping control. A geophone in which a coil bobbin assembly ideally incl... |
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2009
|
Invention
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Vertical geophone having improved distortion characteristics. A vertical geophone that includes a... |
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2008
|
Invention
|
Low-power satellite-timed seismic data acquisition system. A recording system and method fo... |
|
|
Invention
|
Low- power satellite-timed seismic data acquisition system. A recording system and method for con... |
