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082 _aBTS
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100 _aUnger,H G
245 1 _aNONCYLINDRICAL HELIX WAVEGUIDE
260 _a
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300 _a22
500 _aBound With Bts Mono 3751-52,3754-80.
964 _gCIRC
997 _aTR19381 C
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