Synonyms were used for: Steinkohlenbergbau
Search without synonyms: keywords:("Steinkohlenbergbau")
Used synonyms:
- coal mines and mining
- hard coal mining
- steinkohlebergbau
- steinkohlenabbau
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Physics of subsidence and ground movement in coal mines
Engineering Index Backfile | 1937|Keywords: Coal mines and mining -
Tests on ignition of natural gas-air mixtures by permissible explosives in experimental coal mine
Engineering Index Backfile | 1949|Keywords: Coal mines and mining -
What roof conditions permit pillar recovery
Engineering Index Backfile | 1947|Keywords: Coal mines and mining -
Tests of salt as substitute for rock dust in prevention of coal-dust explosions in mines
Engineering Index Backfile | 1940|Keywords: Coal mines and mining -
Tests of barrier using rock dust in paper bags
Engineering Index Backfile | 1938|Keywords: Coal mines and mining -
Tests of rock-dust barriers in experimental mines
Engineering Index Backfile | 1932|Keywords: Coal mines and mining -
Experiments to determine minimum amount of coal-dust required for propagation of a mine explosion
Engineering Index Backfile | 1931|Keywords: Coal mines and mining -
Experiments on strength of small pillars of coal in Pittsburgh bed
Engineering Index Backfile | 1940|Keywords: Coal mines and mining -
Use of wetting agents for allaying coal dust in mines
Engineering Index Backfile | 1940|Keywords: Coal mines and mining -
Studies of roof movement in coal mines -- I. Montour 10 mine of Pittsburgh coal Co
Engineering Index Backfile | 1937|Keywords: Coal mines and mining -
The effectiveness of different-size rock dusts in preventing coal-dust explosions in mines
Engineering Index Backfile | 1930|Keywords: Coal mines and mining -
Mine roof sealing to prevent slate falls
Engineering Index Backfile | 1944|Keywords: Coal mines and mining -
Methods of sampling and analyzing coal-mine dusts for incombustible content
Engineering Index Backfile | 1940|Keywords: Coal mines and mining -
Experimental mine of United States bureau of mines
Engineering Index Backfile | 1933|Keywords: Coal mines and mining -
What do we know about the explosibility of coal dust in mines
Engineering Index Backfile | 1929|Keywords: Coal mines and mining -
Studies of roof movement in coal mines -- I. Montour 10 mine of Pittsburgh coal Co
Engineering Index Backfile | 1937|Keywords: Coal mines and mining -
Coal-dust explosions in mines caused by direct electrical ignition
Engineering Index Backfile | 1930|Keywords: Coal mines and mining -
Tests of the strength of concrete stoppings designed to resist the pressure of explosions in coal mines
Engineering Index Backfile | 1930|Keywords: Coal mines and mining -
Some experiments on the initiation of coal-dust explosions by gas explosions
Engineering Index Backfile | 1930|Keywords: Coal mines and mining
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