4. Telephonic communications
  5. Multi-line or key substation system with selective switching...

Matsushita Electric Industrial Co., ltd.

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Cathode-ray tube device capable of reducing misconvergence

Electric lamp and discharge devices – Cathode ray tube – Beam deflecting means
Reexamination Certificate

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Coin shaped battery and manufacturing method thereof

Chemistry: electrical current producing apparatus – product – and – Plural concentric or single coiled electrode
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Key telephone system and maintenance method therefor

Telephonic communications – Multi-line or key substation system with selective switching...
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Non-aqueous electrolyte and non-aqueous electrolyte cell

Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Include electrolyte chemically specified and method
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Piezoelectric actuator, method for manufacturing the same,...

Incremental printing of symbolic information – Ink jet – Ejector mechanism
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