CA296669A - Dispositif a decouper des lentilles concaves - Google Patents

Dispositif a decouper des lentilles concaves

Info

Publication number
CA296669A
CA296669A CA296669A CA296669DA CA296669A CA 296669 A CA296669 A CA 296669A CA 296669 A CA296669 A CA 296669A CA 296669D A CA296669D A CA 296669DA CA 296669 A CA296669 A CA 296669A
Authority
CA
Canada
Prior art keywords
concave lenses
cutting concave
cutting
lenses
concave
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
CA296669A
Other languages
English (en)
Inventor
Wilhelm Gehrke Friedrich
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
Publication date
Application granted granted Critical
Publication of CA296669A publication Critical patent/CA296669A/fr
Expired legal-status Critical Current

Links

CA296669A Dispositif a decouper des lentilles concaves Expired CA296669A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA296669T

Publications (1)

Publication Number Publication Date
CA296669A true CA296669A (fr) 1930-01-14

Family

ID=35233987

Family Applications (1)

Application Number Title Priority Date Filing Date
CA296669A Expired CA296669A (fr) Dispositif a decouper des lentilles concaves

Country Status (1)

Country Link
CA (1) CA296669A (fr)

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