Title:
Continuous miner having vertically and horizontally swingable cutter drum and conveyor sections
United States Patent 3307879

Inventors:
Bergmann, Ernst R.
Publication Date:
03/07/1967
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Assignee:
WESTINGHOUSE AIR BRAKE CO
Primary Class:
Other Classes:
299/75
International Classes:
E21C27/24; E21C27/00