Exploration of Illumination Concepts for Underground Coal Mines - 3 Volume Set. Volume 2 - Appendix D. Design Drawings.
NTIS: PB/265-186 Available for Reference At Bureau Libraries :184 pages
This appendix contains drawing lists and drawings of components and assemblies designed for the prototype portable and machine-mounted lighting systems for tasks II and IV of Contract No. H0220065.
CP; Final Contract Report;
NTIS Accession No.
NTIS: PB/265-186 Available for Reference At Bureau Libraries