Inspection and Testing of Mine-type Electrical Equipment for Permissibility

Permissible Coal-handling Equipment Approved from January, 1926, to December, 1930, Inclusive: Volumes 340-349

Permissible Electrically Operated Post Drills and Drilling Machines

Suggestions for Wiring Permissible Equipment

Some Information on Automatic Coupling of Mine Cars

Data in Reference to Installation of Cables in Shafts and Boreholes

Suggestions for the Design of Electrical Accessories for Permissible Mining Equipment: Volumes 256-265

State Regulations Pertaining to Hoisting of Men

State Regulations Pertaining to the Use of Internal-combustion Engines in Coal and Metal Mines and in Tunnels

Flame Safety Lamps: Volumes 225-231

An International Viewpoint on Safeguarding Electrical Equipment Used in Gassy Mines

Permissible Electrically Operated Air Compressors

Inspection and Testing of Mine-type Electrical Equipment for Permissibility: Revision of Information Circular 7185

Flame Safety Lamps: Volumes 225-231

Safeguarding Electrical Equipment Used in Gassy Mines: European Practice. Germany. III

List of Permissible Mine Equipment

Who May Set Off Blasts in Coal Mines?: (state Regulations Relating Thereto)

Hazards from Low Or Under Voltage

Investigation of Electrical Equipment, Safety Lamps, and Gas Detectors for Safety

State Regulations Governing Explosion-proof Type Electric Motors in Coal Mines