4. H - Electricity
  5. 04
  6. B

Reed H. Johnston

H - Electricity – 04 – B

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Coin discriminator

G - Physics – 07 – D
Patent

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Cycloconverter apparatus and method for working into an...

H - Electricity – 02 – M
Patent

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Method and apparatus for communication over electric power...

H - Electricity – 04 – M
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Method and apparatus for transmitting intelligence over a...

H - Electricity – 04 – B
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Magnetic shielding construction for electric transformers

H - Electricity – 01 – F
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Profile ID: LFCA-PAI-P-611292

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