ES78085A3 - A bifocal lens system. - Google Patents

A bifocal lens system.

Info

Publication number
ES78085A3
ES78085A3 ES78085A ES78085A ES78085A3 ES 78085 A3 ES78085 A3 ES 78085A3 ES 78085 A ES78085 A ES 78085A ES 78085 A ES78085 A ES 78085A ES 78085 A3 ES78085 A3 ES 78085A3
Authority
ES
Spain
Prior art keywords
lens system
bifocal lens
bifocal
lens
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES78085A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to ES78085A priority Critical patent/ES78085A3/en
Publication of ES78085A3 publication Critical patent/ES78085A3/en
Expired legal-status Critical Current

Links

ES78085A 1921-04-25 1921-04-25 A bifocal lens system. Expired ES78085A3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES78085A ES78085A3 (en) 1921-04-25 1921-04-25 A bifocal lens system.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES78085A ES78085A3 (en) 1921-04-25 1921-04-25 A bifocal lens system.

Publications (1)

Publication Number Publication Date
ES78085A3 true ES78085A3 (en) 1921-07-01

Family

ID=69498867

Family Applications (1)

Application Number Title Priority Date Filing Date
ES78085A Expired ES78085A3 (en) 1921-04-25 1921-04-25 A bifocal lens system.

Country Status (1)

Country Link
ES (1) ES78085A3 (en)

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