4. Recorders
  5. Electric recording
  6. Electrochemical

Robert S. McCallum

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Apparatus and method for detection of overlapping objects

Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent

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Charge transfer imaging cartridge

Recorders – Electric recording – Electrochemical
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Charge transfer imaging cartridge

Recorders – Electric recording – Electrochemical
Patent

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Charged particle printer

Recorders – Electric recording – Electrochemical
Patent

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Ionic print cartridge and printer

Recorders – Electric recording – Electrochemical
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Profile ID: LFUS-PAI-P-678563

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