4. Measuring and testing
  5. Fluid pressure gauge
  6. With protective separator

Span Instruments, Inc.

Corporate Assignee

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Condition responsive apparatus

Measuring and testing – Fluid pressure gauge – Photoelectric
Patent

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Controlling process gas flow

Fluid handling – Processes – Involving pressure control
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Flow responsive transmitter and indicator

Measuring and testing – Volume or rate of flow – By measuring thrust or drag forces
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Flow responsive transmitter and indicator

Measuring and testing – Volume or rate of flow – By measuring thrust or drag forces
Patent

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Inventory control collar

Packages and containers for goods – Element or attachment
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