Home > Term: Owen's borehole surveying instrument
Owen's borehole surveying instrument
A clockwork photographic apparatus that records clinometer and compass readings on sensitized paper. It is used during borehole surveying.
- Sõnaliik: noun
- Valdkond/domeen: Mining
- Category: General mining; Mineral mining
- Government Agency: USBM
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Looja
- ed.young
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(Milwaukee, United States)
