Fill in the Blanks Intermodal ContainersOnline version English for Navigation - Teacher: Paula D. Cava by Paula DC 1 An intermodal container , often called a container or a freight container , is a large standardized shipping container , designed and built for intermodal freight Intermodal containers are primarily used to and transport materials and products efficiently and in the global containerized intermodal freight transport system , but smaller numbers are in regional use as well . Intermodal exist in many types and a number of sizes , but ninety percent of the global container are so - called dry freight or " general purpose " containers First invented in the early 20th century , modern 40 - foot containers proliferated during the 1960s and 1970s under the containerization innovations of the American shipping SeaLand .
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