Citations
Earth augering; the auger holes are started with these small earth augers and then the banker drill augers go in afterwards, 1934, GBR/0115/RCS/RCMS 364/2/1/21. Cambridge University Library. |
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Earth augering; the auger holes are started with these small earth augers and then the banker drill augers go in afterwards, 1934, GBR/0115/RCS/RCMS 364/2/1/21. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/198384 Accessed January 02, 2025. |