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Data plotter

Recorders – Combined with external recorder operating means – Well logging
Patent

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Data recording apparatus

Recorders – Combined with external recorder operating means – Well logging
Patent

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Defect plotting system

Recorders – Combined with external recorder operating means – Well logging
Patent

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Device for gating a blanking bar into a recording of analog sign

Recorders – Combined with external recorder operating means – Well logging
Patent

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Device for measuring the contour of a surface along a scanning l

Recorders – Combined with external recorder operating means – Well logging
Patent

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Device for recording distances traveled on personal and business

Recorders – Combined with external recorder operating means – Well logging
Patent

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Device for recording distances traveled on personal and business

Recorders – Combined with external recorder operating means – Well logging
Patent

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Digital to graphic character generator

Recorders – Combined with external recorder operating means – Well logging
Patent

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Dot printer for reproduction of halftone images

Recorders – Combined with external recorder operating means – Well logging
Patent

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Dot-printing device with independently operated data-processing

Recorders – Combined with external recorder operating means – Well logging
Patent

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Dynamometer for monitoring sucker rod strings

Recorders – Combined with external recorder operating means – Well logging
Patent

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