Permissible Electric Cap Lamps and Ventilation in Certain California Mines and Water-tunnel Construction
by Lee Clyde Ilsley, Charles Freeman Jackson, Eugene Delos Gardner, Simon Harry Ash, William Waugh Adams, George Samuel Rice, Harold Putnam Greenwald, Alva Britt Hooker, John Ballantine Knaebel, John Frederick Johnson, Joseph Holbrook Rankin, Earl Jeffries Coggeshall
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Permissible Electric Cap Lamps and Ventilation in Certain California Mines and Water-tunnel Construction
by Lee Clyde Ilsley, Charles Freeman Jackson, Eugene Delos Gardner, Simon Harry Ash, William Waugh Adams, George Samuel Rice, Harold Putnam Greenwald, Alva Britt Hooker, John Ballantine Knaebel, John Frederick Johnson, Joseph Holbrook Rankin, Earl Jeffries Coggeshall
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No description available
Book Details
- Publisher:
- U.S. Government Printing Office
- Published:
- 1932
- Pages:
- 53
- Language:
- EN
- ISBN:
- Unknown