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Extensible Brattice Support System for Mine Face Ventilation.
Divers-EF; Lascola-JC; Behers-RG
U S Patent 1985 Jan; (4):
Note: abstracts are not available for patents at this time.
Issue of Publication
U.S. Patent No. 4,494,894, Jan. 22, 1985
Page last reviewed: April 12, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division