SEARCH RESULTS for assignor:"ZHANG, BINGHUA"

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(X0) 15824126: WAVELENGTH SELECTIVE SWITCH AND OPTICAL SIGNAL TRANSMISSION SYSTEM

(A1) 20180152259: WAVELENGTH SELECTIVE SWITCH AND OPTICAL SIGNAL TRANSMISSION SYSTEM

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(X0) 15279221: MACHINE CABINET

(A1) 20170359919: MACHINE CABINET