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Individual
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Individual
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Priority to ES55993ApriorityCriticalpatent/ES55993A1/en
Publication of ES55993A1publicationCriticalpatent/ES55993A1/en
ES55993A1913-07-091913-07-09
Improvements in devices for unloading coal and other materials in bulk, from barges, barges and similar vessels.
ExpiredES55993A1
(en)