Q. Xerography was invented by

(A) Chester Floyd Carlson
(B) Wilhelm Conrad Roentgen
(C) Elisha Thompson
(D) Sir Edward Mellanby

✅ Correct Answer: (A) Chester Floyd Carlson

Published by Vishal Gupta ⭐ 7.73K Points at 14-Dec-2022 08:38 pm in Science

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