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Browse Free Online Books and eBooks:
Unix Time-sharing System: Unix Programmer's Manual
US Patent 2599368: Beam switching system
US Patent 2599409: Sender test circuit
US Patent 2600466: Wave guide attenuator
US Patent 2600482: Electric delay circuit
US Patent 2600500: Semiconductor signal translating device with controlled carrier transit times
US Patent 2600560: Static frequency changer
US Patent 2600561: Pulse modulation system
US Patent 2601373: Method of making silicon carbide circuit elements
US Patent 2601444: Stabilized multivibrator oscillator
US Patent 2602148: High-frequency amplifier
US Patent 2602151: Triangular wave generator
US Patent 2602158: Coder for pulse code modulation
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