FR727100A - Jumelle - Google Patents

Jumelle

Info

Publication number
FR727100A
FR727100A FR727100DA FR727100A FR 727100 A FR727100 A FR 727100A FR 727100D A FR727100D A FR 727100DA FR 727100 A FR727100 A FR 727100A
Authority
FR
France
Prior art keywords
twin
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.)
P E VALETTE ET CIE
Original Assignee
P E VALETTE ET CIE
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 P E VALETTE ET CIE filed Critical P E VALETTE ET CIE
Application granted granted Critical
Publication of FR727100A publication Critical patent/FR727100A/fr
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
    • G02B23/02—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices involving prisms or mirrors
    • G02B23/06—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices involving prisms or mirrors having a focussing action, e.g. parabolic mirror

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR727100D 1931-02-05 1931-02-05 Jumelle Expired FR727100A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR727100T 1931-02-05

Publications (1)

Publication Number Publication Date
FR727100A true FR727100A (fr) 1932-06-13

Family

ID=9111093

Family Applications (1)

Application Number Title Priority Date Filing Date
FR727100D Expired FR727100A (fr) 1931-02-05 1931-02-05 Jumelle

Country Status (1)

Country Link
FR (1) FR727100A (fr)

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