3 years ago

Why vacuum flask is known as thermos flak?

1 answer:

8 0

The flask was later developed using new materials such as glass and aluminum; however, Dewar refused to patent his invention. ... The name later became a genericized trademark after the term "thermos" became the household name for such a vacuum-insulated container for liquids.

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34kurt

Answer:

I believe the answer to be B

Explanation:

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Answer:

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amm1812

The right answer is True

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