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    Effect of Shape of Timbers on Resistance to Air Flow in a Model Mine Shaft

    Leslie G. R. Crouch

     · 1938

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    Gentlemen, We Thank You, OAC Review, V.32, No.4, Dec. 1919

    OAC Review Index, James Tilt, R.E. Smith, George Laird, Gordon Auld, L.O. Clifford, W.A. Dryden, Mac Forsythe, T.H. Hassard, James Torrance, T.A. Russell, Joseph Brethour, George Telfer, John T. Gibson, Ernest Robson, Robert McEwen, G.R. Crouch, Smith & Richardson, (Columbus, Ohio), Graham Bros., (Claremont, Ont.), Brown (John) & Sons, (Galt, Ont.), Weldwood Farm, (London, Ont.), Patrick (W.H.) & Sons, (Iderton, Ont.), Hooper (W.H.) & Sons, (St. Mary's, Ont.)

     · 1919

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    British Army Field Post Offices 1919-1950: Locations and Assignments

    G. R. Crouch, Norman Hill

     · 1951

    Feldpost ; Grossbritannien und Nordirland ; Feldpoststempel.

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    British Army Field Post Offices, 1939-1950

    G. R. Crouch, Norman Hill

     · 1951

Coded by Alvin Chou