LEADER 00000nam 2200169 a 4500 001 0475561 003 UkHlHU 007 t 008 002611 1 1953 000 eng 040 UkHlHU 050 4 TA 140 S5 100 0 Siemens, C.W. 245 02 A collection of letters to Sir C.W.Siemens. 300 0000p. 946 260 lacks |a 946 260 lacks |b 946 260 lacks |c, 008 has valid date 946 300 data invalid 946 6XX absent
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