4. Weighing scales
  5. With total register
  6. Integrator of steadily flowing fluent material

Ronald H. Campbell

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Handheld electronics device having ergonomic features

Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices
Reexamination Certificate

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Slope and motion compensator for weighing on a dynamic platform

Weighing scales – With total register – Integrator of steadily flowing fluent material
Reexamination Certificate

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System for weighing material on a conveyor

Weighing scales – With total register – Integrator of steadily flowing fluent material
Patent

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Weighing material on a conveyor

Weighing scales – With total register – Integrator of steadily flowing fluent material
Patent

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