General Knowledge - Inventions - Discussion

Discussion Forum : Inventions - Section 1 (Q.No. 59)
59.
Who invented Bifocal Lens?
Alfred B. Nobel
Thomas Alva Edison
Benjamin Franklin
Rudolf Diesel
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
1 comments Page 1 of 1.

SUHAS TR said:   1 decade ago
Because He Invented This BIFOCAL Glass So The Words Which Are Far We Can See Near And Clear, He Divide The Glass Into Equal Piece And Made A Frame To Set The Glass.

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