Combination telephone amplifier, light emitting diode lamp, cale

Details Combination telephone amplifier, light emitting diode lamp, cale Combination telephone amplifier, light emitting diode lamp, cale

1984-05-01

1987-02-17

Burke, Wallace R.

Recording, communication, or information retrieval equipment

Computer, data processor equipment

D14 60, D14 96, D14 74

Patent

active

D02883180

REFERENCES:
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patent: D244482 (1977-05-01), Ishida
patent: D250201 (1978-11-01), Pierce
patent: D250414 (1978-11-01), Halin
patent: D276153 (1984-10-01), Iijima
patent: D277279 (1985-01-01), Matsuda

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