@article{oai:repository.dl.itc.u-tokyo.ac.jp:00024662, author = {高木, 昇 and 丹羽, 登 and 石井, 善昭 and 岡本, 舜三 and 佐藤, 正巳}, issue = {6}, journal = {生産研究}, month = {Jun}, note = {application/pdf}, pages = {227--227}, title = {速報19 : ブラウン管型超音波厚み計, 速報20 : 杉板の打擊による破壊}, volume = {3}, year = {1951} }