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Individual
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Individual
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Priority to ES18333ApriorityCriticalpatent/ES18333A1/en
Publication of ES18333A1publicationCriticalpatent/ES18333A1/en
ES18333A1895-11-281895-11-28
A system of rods or rulers to find out the contents of pots or containers, whether they are full or unfilled.
ExpiredES18333A1
(en)