General Knowledge - Inventions - Discussion
Discussion Forum : Inventions - Section 1 (Q.No. 59)
59.
Who invented Bifocal Lens?
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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