Hinks, Arthur R. (Arthur Robert), 1873-1945 · Cambridge, University press · leaf 263
3. Mark on tripod. 4. Alignment sight on tripod. Invar Tape Base Apparatus. Department of Geography,Cambridge University. SURVEY INSTRUMENTS 197 precautions are taken to control at frequent intervals the lengthsand the graduation of the staves. Invar tape or wire base apparatus. As a result of…
Maps · Surveying
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