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Slideboard Device for Underground Mine Face Ventilation.
Divers EF; Lascola JC
U S Patent 1981 Aug; (4):
Note: abstracts are not available for patents at this time.
Issue of Publication
U.S. Patent No. 4,282,802, Aug. 11, 1981
Page last reviewed: November 19, 2021
Content source: National Institute for Occupational Safety and Health Education and Information Division