FR419669A - Improvements to glasses and binoculars - Google Patents

Improvements to glasses and binoculars

Info

Publication number
FR419669A
FR419669A FR419669DA FR419669A FR 419669 A FR419669 A FR 419669A FR 419669D A FR419669D A FR 419669DA FR 419669 A FR419669 A FR 419669A
Authority
FR
France
Prior art keywords
binoculars
glasses
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
Luis Augusto Teixeira De Aragao
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.)
LUIS AUGUSTO TEIXEIRA DE ARAGA
Original Assignee
LUIS AUGUSTO TEIXEIRA DE ARAGA
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 LUIS AUGUSTO TEIXEIRA DE ARAGA filed Critical LUIS AUGUSTO TEIXEIRA DE ARAGA
Application granted granted Critical
Publication of FR419669A publication Critical patent/FR419669A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/16—Housings; Caps; Mountings; Supports, e.g. with counterweight
    • G02B23/18—Housings; Caps; Mountings; Supports, e.g. with counterweight for binocular arrangements

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR419669D 1909-10-30 1909-10-30 Improvements to glasses and binoculars Expired FR419669A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR419669T 1909-10-30

Publications (1)

Publication Number Publication Date
FR419669A true FR419669A (en) 1911-01-12

Family

ID=1462878

Family Applications (1)

Application Number Title Priority Date Filing Date
FR419669D Expired FR419669A (en) 1909-10-30 1909-10-30 Improvements to glasses and binoculars

Country Status (1)

Country Link
FR (1) FR419669A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2642776A (en) * 1949-12-31 1953-06-23 American Optical Corp Variable power bifocal lens
US2799862A (en) * 1954-07-19 1957-07-23 American Optical Corp Eye protective means

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2642776A (en) * 1949-12-31 1953-06-23 American Optical Corp Variable power bifocal lens
US2799862A (en) * 1954-07-19 1957-07-23 American Optical Corp Eye protective means

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