FR489140A - Perfectionnements aux lentilles - Google Patents

Perfectionnements aux lentilles

Info

Publication number
FR489140A
FR489140A FR489140DA FR489140A FR 489140 A FR489140 A FR 489140A FR 489140D A FR489140D A FR 489140DA FR 489140 A FR489140 A FR 489140A
Authority
FR
France
Prior art keywords
lentil
enhancements
lentil enhancements
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
Other languages
English (en)
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.)
TAYLOR
Taylor Taylor and Hobson Ltd
Original Assignee
TAYLOR
Taylor Taylor and Hobson Ltd
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 TAYLOR, Taylor Taylor and Hobson Ltd filed Critical TAYLOR
Application granted granted Critical
Publication of FR489140A publication Critical patent/FR489140A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR489140D 1918-03-05 1918-03-05 Perfectionnements aux lentilles Expired FR489140A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR489140T 1918-03-05

Publications (1)

Publication Number Publication Date
FR489140A true FR489140A (fr) 1918-12-20

Family

ID=1525417

Family Applications (1)

Application Number Title Priority Date Filing Date
FR489140D Expired FR489140A (fr) 1918-03-05 1918-03-05 Perfectionnements aux lentilles

Country Status (1)

Country Link
FR (1) FR489140A (fr)

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