Search Results - Brennan, Robert J.

  • Showing 1 - 3 results of 3
Refine Results
  1. 1
    Cover Image

    Experimental longwall mining in a Pennsylvania anthracite mine (In two parts). by Brennan, Robert J.

    Published 1964
    Search for the full-text version of this title in HathiTrust
    Government Document Book

    Save to List
    Saved in:
  2. 2
    Cover Image

    Experimental longwall mining in a Pennsylvania anthracite mine (in two parts). by Malenka, Wilbert T.

    Published 1966
    Other Authors: “…Brennan, Robert J.…”
    Government Document Book

    Save to List
    Saved in:
  3. 3
    Cover Image

    Anthracite mechanical-mining investigations : use of yielding steel supports (props) in combination with backfilling for mining thick, flat beds / by Hartley, John C.

    Published 1956
    Other Authors: “…Brennan, Robert J.…”
    Search for the full-text version of this title in HathiTrust
    Government Document Book

    Save to List
    Saved in:
Search Tools: RSS Feed – Save Search