CA122563A - Fabrication de lentilles bifocales - Google Patents

Fabrication de lentilles bifocales

Info

Publication number
CA122563A
CA122563A CA000122563A CA122563DA CA122563A CA 122563 A CA122563 A CA 122563A CA 000122563 A CA000122563 A CA 000122563A CA 122563D A CA122563D A CA 122563DA CA 122563 A CA122563 A CA 122563A
Authority
CA
Canada
Prior art keywords
manufacture
focal lenses
lenses
focal
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
CA000122563A
Other languages
English (en)
Inventor
Malcolm Bentzon
Alfred Henry Emerson Jr.
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 CA122563A publication Critical patent/CA122563A/fr
Expired legal-status Critical Current

Links

CA000122563A 1907-03-28 1907-03-28 Fabrication de lentilles bifocales Expired CA122563A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA122563T 1907-03-28

Publications (1)

Publication Number Publication Date
CA122563A true CA122563A (fr) 1909-12-14

Family

ID=45242287

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000122563A Expired CA122563A (fr) 1907-03-28 1907-03-28 Fabrication de lentilles bifocales

Country Status (1)

Country Link
CA (1) CA122563A (fr)

Similar Documents

Publication Publication Date Title
CA108263A (fr) Methode de fabrication de lentilles bi-focales
CA115903A (fr) Fabrication de lentilles a foyer doubles
CA116369A (fr) Lentille bifocale
CA111329A (fr) Lunettes
CA106665A (fr) Lorgnon
CA105343A (fr) Lorgnon
CA106371A (fr) Lorgnon
CA108487A (fr) Methode de fabrication de lentilles
CA108488A (fr) Monture de lunettes
CA117950A (fr) Methode de production de lentilles bifocales
CA108103A (fr) Fabrication d'ethylene dichlore-etoxie
CA106522A (fr) Maniere de placer les vers de lunettes
CA101890A (fr) Methode de faire des lentilles
CA108266A (fr) Monture de lunettes
CA105753A (fr) Lorgnon
CA108553A (fr) Pont tournant
CA105824A (fr) Fabrication de briquettes
CA109645A (fr) Fabrication de wurtzilite
CA108979A (fr) Boitier de montre
CA104445A (fr) Fabrication de chaussures
CA107259A (fr) Fabrication de verre entremele de fils metalliques
CA112080A (fr) Fabrication de verre renforci de fils metalliques
CA108102A (fr) Fabrication de glycine
CA111676A (fr) Fabrication de pierre artificielle
CA109657A (fr) Moule a verre