FR1364899A - Optical viewfinder with telescopic elements with clamping - Google Patents

Optical viewfinder with telescopic elements with clamping

Info

Publication number
FR1364899A
FR1364899A FR8736A FR8736A FR1364899A FR 1364899 A FR1364899 A FR 1364899A FR 8736 A FR8736 A FR 8736A FR 8736 A FR8736 A FR 8736A FR 1364899 A FR1364899 A FR 1364899A
Authority
FR
France
Prior art keywords
clamping
optical viewfinder
telescopic elements
telescopic
elements
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
FR8736A
Other languages
French (fr)
Inventor
Charles Blanchard
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 filed Critical
Priority to FR8736A priority Critical patent/FR1364899A/en
Application granted granted Critical
Publication of FR1364899A publication Critical patent/FR1364899A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B7/00—Special arrangements or measures in connection with doors or windows
    • E06B7/28—Other arrangements on doors or windows, e.g. door-plates, windows adapted to carry plants, hooks for window cleaners
    • E06B7/30—Peep-holes; Devices for speaking through; Doors having windows

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
FR8736A 1963-07-16 1963-07-16 Optical viewfinder with telescopic elements with clamping Expired FR1364899A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8736A FR1364899A (en) 1963-07-16 1963-07-16 Optical viewfinder with telescopic elements with clamping

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8736A FR1364899A (en) 1963-07-16 1963-07-16 Optical viewfinder with telescopic elements with clamping

Publications (1)

Publication Number Publication Date
FR1364899A true FR1364899A (en) 1964-06-26

Family

ID=8573523

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8736A Expired FR1364899A (en) 1963-07-16 1963-07-16 Optical viewfinder with telescopic elements with clamping

Country Status (1)

Country Link
FR (1) FR1364899A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0260159A1 (en) * 1986-09-02 1988-03-16 Jean-Yves Chauveau Security device to verify a document passed through a bolted door in closed position
FR2635140A1 (en) * 1988-08-02 1990-02-09 Enet Philippe Door spyhole (viewer)
EP1627984A2 (en) * 2004-08-18 2006-02-22 Grundmann Beschlagtechnik GmbH Spyhole viewer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0260159A1 (en) * 1986-09-02 1988-03-16 Jean-Yves Chauveau Security device to verify a document passed through a bolted door in closed position
FR2635140A1 (en) * 1988-08-02 1990-02-09 Enet Philippe Door spyhole (viewer)
EP1627984A2 (en) * 2004-08-18 2006-02-22 Grundmann Beschlagtechnik GmbH Spyhole viewer
EP1627984A3 (en) * 2004-08-18 2006-06-07 Grundmann Beschlagtechnik GmbH Spyhole viewer

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