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All-Russian Research Institute of Abrasives and Grinding in Leningrad
USSR. Leningrad. December 13, 1965. Cubic boron nitride (CBN) tools made on organic and ceramic bonds at the All-Union Research Institute of Abrasives and Grinding. Maxim Blokhin/TASS
| Location: | USSR, Leningrad |
| Photo: | №155116 |
| Date of shooting: | 12.13.1965 |
| Authors: | |