〔371〕円板型緩衝ローラ〔Colliery Guard., 1955-4-7, Vol.190, No.4910, p.430〕

井上 啓
1955 Journal of the Society of Mechanical Engineers  
doi:10.1299/jsmemag.58.442_860_4 fatcat:yrom74qxwbfuhmoawk2hxvomsy