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Thermos Root Word. (n.) trademark registered in britain 1907, invented by sir james dewar (patented 1904 but not. A container (such as a bottle or jar) with a vacuum between an inner and outer wall used to keep material and.
(n.) trademark registered in britain 1907, invented by sir james dewar (patented 1904 but not. A container (such as a bottle or jar) with a vacuum between an inner and outer wall used to keep material and.
(n.) trademark registered in britain 1907, invented by sir james dewar (patented 1904 but not. A container (such as a bottle or jar) with a vacuum between an inner and outer wall used to keep material and. (n.) trademark registered in britain 1907, invented by sir james dewar (patented 1904 but not.