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What was the first advance in refrigeration technologies in the 1800s? ans: A US patent for refrigeration was filed.
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What was the first advance in refrigeration technologies in the 1800s?

ans: A US patent for refrigeration was filed.

User Teabot
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Answer:

Artificial refrigeration

Step-by-step explanation:

Artificial refrigeration began in mid 1750s and developed in the 1800s. In 1834, the first working vapor-compression refrigerator was built.

User Abisoye Falabi
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