4. Liquid purification or separation
  5. With alarm, indicator, register, recorder, signal or...
  6. Position or extent of motion

Robert H. Ahrens

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Filter with liquid meter

Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Position or extent of motion
Patent

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Hand operated ink stamp

Printing and office machinery – Printing equipment – Hand held or manipulated
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Variable impression hand stamp

Printing – Printing members and inkers
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Profile ID: LFUS-PAI-P-1651407

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