000
00282nam a2200121Ia 4500
008
211126s9999 xx 000 0 und d
082
_a
621.38152
100
_a
S C GUPTHA
245
0
_a
OPTO ELECTRONIC DEVICES AND SYSTEMS
260
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P.H.I
365
_b
350.00
942
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BTECH
999
_c
137990
_d
137990