Information circulars. L. C. (series). 7471. Control of roof and prevention of accidents from falls of rock and coal. suggested roof supports for use at faces in conjunction with mechanical loading; by Edward Thomas, C. H. Seeling, Frank Perz, and M. V. Hansen.
Publication Title:
Control of roof and prevention of accidents from falls of rock and coal. suggested roof supports for use at faces in conjunction with mechanical loading; by Edward Thomas, C. H. Seeling, Frank Perz, and M. V. Hansen.
Display Title:
Information circulars. L. C. (series). 7471. Control of roof and prevention of accidents from falls of rock and coal. suggested roof supports for use at faces in conjunction with mechanical loading; by Edward Thomas, C. H. Seeling, Frank Perz, and M. V. Hansen.
Series Title:
Information circulars. L. C. (series).
Corporate Agency Authors:
Mines Bureau and Interior Dept.
Sort Author:
Mines Bureau
Authors:
Thomas, Edward, Seeling, C. H., Perz, Frank, and Hansen, M. V.
Date:
May 1948
Publish Date ISO Format:
1948-05-01T00:00:00Z
Publication Start:
19480501
Publication End:
19480531
Corporate/Agency Author:
Mines Bureau
Publication month:
8
Publication year:
1948
SuDoc number:
I 28.27:(nos.)
Description:
[1]+9 p. 14 pl. 4°
Notes:
Processed.]
Notes:
Processed.] † Distribution Made by Issuing Office.