4. Measuring and testing
  5. Specific gravity or density of liquid or solid
  6. Multiple floats of graduated density

Delbert D. Randolph

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Condom display and storage system simulating audio cassette disp

Special receptacle or package – Combined or convertible – Including booklet – leaflet or record means
Patent

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Hydrometer for determining coolant fluid antifreeze concentratio

Measuring and testing – Specific gravity or density of liquid or solid – Multiple floats of graduated density
Patent

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Profile ID: LFUS-PAI-P-911927

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