4. Electric heating
  5. Heating devices
  6. With power supply and voltage or current regulation or...

John Allard

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Control for an electric heating device for providing consistent

Electric heating – Heating devices – With power supply and voltage or current regulation or...
Patent

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Method and apparatus for optimizing a security database for...

Data processing: financial – business practice – management – or co – Automated electrical financial or business practice or... – Including point of sale terminal or electronic cash register
Reexamination Certificate

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Safety circuit for heating devices using PTC wire

Electric heating – Heating devices – With protective means for heater
Reexamination Certificate

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Self-checkout apparatus

Registers – Systems controlled by data bearing records – Mechanized store
Reexamination Certificate

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Variable ratio drive system

Endless belt power transmission systems or components – Pulley with expansible rim means or pulleys with alternately... – Structure for variably adjusting radius of rim section
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1991659

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