4. H - Electricity
  5. 01
  6. J

Akira Nakayama

H - Electricity – 01 – J

Inventor

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Details

Inventor

Country: Japan

Automatic telephone answering and message recording device

H - Electricity – 04 – M
Patent

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Cathode ray tube

H - Electricity – 01 – J
Patent

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Cyclohexenone derivatives

A - Human Necessities – 01 – N
Patent

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Dna coding for a signal amino acid sequence and dna...

C - Chemistry – Metallurgy – 12 – N
Patent

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Flat thermionic cathode with plural heating elements

H - Electricity – 01 – J
Patent

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Profile ID: LFCA-PAI-P-143467

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