CBSE BOARD XII, asked by revathyvelmurugan7, 4 months ago

who found thermocoal

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Answered by gthangaraj3245

Answer:

Carl Munters and John Gudbrand Tandberg of Sweden received a US patent for polystyrene foam as an insulation product in 1935 (USA patent number 2,023,204).

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who found thermocoal​

Answers

who found thermocoal