FR452223A - Improvements made to spherometers - Google Patents

Improvements made to spherometers

Info

Publication number
FR452223A
FR452223A FR452223DA FR452223A FR 452223 A FR452223 A FR 452223A FR 452223D A FR452223D A FR 452223DA FR 452223 A FR452223 A FR 452223A
Authority
FR
France
Prior art keywords
spherometers
improvements made
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
French (fr)
Inventor
William Gowlland
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 FR452223A publication Critical patent/FR452223A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • A61B3/107—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for determining the shape or measuring the curvature of the cornea
FR452223D 1911-12-21 1912-12-20 Improvements made to spherometers Expired FR452223A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB452223X 1911-12-21

Publications (1)

Publication Number Publication Date
FR452223A true FR452223A (en) 1913-05-10

Family

ID=1492462

Family Applications (1)

Application Number Title Priority Date Filing Date
FR452223D Expired FR452223A (en) 1911-12-21 1912-12-20 Improvements made to spherometers

Country Status (1)

Country Link
FR (1) FR452223A (en)

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