[[Category:Scans from 'Electrical Machinery', 1917|Fig. 149 Bearing with lubrication by ring oiler]] English determination method: SHA-1...
[[Category:Scans from 'Electrical Machinery', 1917|Fig. 149 Bearing with lubrication by ring oiler]] English determination method: SHA-1...
[[Category:Scans from 'Electrical Machinery', 1917|Fig. 149 Bearing with lubrication by ring oiler]] English determination method or standard: SHA-1...