FR817083A - Magnification change device - Google Patents

Magnification change device

Info

Publication number
FR817083A
FR817083A FR817083DA FR817083A FR 817083 A FR817083 A FR 817083A FR 817083D A FR817083D A FR 817083DA FR 817083 A FR817083 A FR 817083A
Authority
FR
France
Prior art keywords
change device
magnification change
magnification
change
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)
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.)
OPTIQUE SOC GEN
Original Assignee
OPTIQUE SOC GEN
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 OPTIQUE SOC GEN filed Critical OPTIQUE SOC GEN
Application granted granted Critical
Publication of FR817083A publication Critical patent/FR817083A/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

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR817083D 1936-04-29 1936-04-29 Magnification change device Expired FR817083A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR817083T 1936-04-29

Publications (1)

Publication Number Publication Date
FR817083A true FR817083A (en) 1937-08-25

Family

ID=9268133

Family Applications (1)

Application Number Title Priority Date Filing Date
FR817083D Expired FR817083A (en) 1936-04-29 1936-04-29 Magnification change device

Country Status (1)

Country Link
FR (1) FR817083A (en)

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