000
00275pam a2200109a 44500
082
_a
TR
_b
TPR-108
100
_a
Edward F. Divers
245
1
_a
Sideboard device for inproved face ventilation in coal mines
260
_a
_b
_c
700
_a
Fred N. Kissell
997
_a
TR3919 C
999
_c
404997
_d
404997