Vacuum flask, illustration - Stock Image - C050/7549 - Science Photo Library

Illustration of a thermos or vacuum flask. The internal chamber, and the liquid that is contains (brown), is kept hot or cold by an insulating vacuum in the double wall of the inner receptacle. SCIENCE PHOTO LIBRARY

Conduction and insulation, illustration - Stock Image - C050/7528 - Science Photo Library

Illustration of an Atom Inside a Flask as part of an Experiment Stock Photo - Alamy

Thermos flask vacuum hi-res stock photography and images - Alamy

Vacuum Flask Images – Browse 2,234 Stock Photos, Vectors, and Video

thermos flask - Keyword Search - Science Photo Library

Vacuum flask - Servier Medical Art

47,900+ Vacuum Flask Stock Photos, Pictures & Royalty-Free Images - iStock

47,900+ Vacuum Flask Stock Photos, Pictures & Royalty-Free Images - iStock

47,900+ Vacuum Flask Stock Photos, Pictures & Royalty-Free Images - iStock

14,728 Vacuum Flask Images, Stock Photos, 3D objects, & Vectors

14,728 Vacuum Flask Images, Stock Photos, 3D objects, & Vectors

14,728 Vacuum Flask Images, Stock Photos, 3D objects, & Vectors

Vacuum flask, illustration - Stock Image - C050/7549 - Science Photo Library

Diagram Showing Vacuum Flask 3D Illustration, Stock Photo, Photo Et Image Low Budget Royalty Photo ESY-041379466 Agefotostock

Vacuum flask hi-res stock photography and images - Alamy