CA116369A - Bi-focal lens - Google Patents

Bi-focal lens

Info

Publication number
CA116369A
CA116369A CA000116369A CA116369DA CA116369A CA 116369 A CA116369 A CA 116369A CA 000116369 A CA000116369 A CA 000116369A CA 116369D A CA116369D A CA 116369DA CA 116369 A CA116369 A CA 116369A
Authority
CA
Canada
Prior art keywords
focal lens
focal
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
CA000116369A
Other languages
French (fr)
Inventor
Charles W. Connor
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
Application granted granted Critical
Publication of CA116369A publication Critical patent/CA116369A/en
Expired legal-status Critical Current

Links

CA000116369A 1907-08-13 1907-08-13 Bi-focal lens Expired CA116369A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA116369T 1907-08-13

Publications (1)

Publication Number Publication Date
CA116369A true CA116369A (en) 1909-02-02

Family

ID=45236094

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000116369A Expired CA116369A (en) 1907-08-13 1907-08-13 Bi-focal lens

Country Status (1)

Country Link
CA (1) CA116369A (en)

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