GB971867A - Improvements in optical viewers - Google Patents

Improvements in optical viewers

Info

Publication number
GB971867A
GB971867A GB3684263A GB3684263A GB971867A GB 971867 A GB971867 A GB 971867A GB 3684263 A GB3684263 A GB 3684263A GB 3684263 A GB3684263 A GB 3684263A GB 971867 A GB971867 A GB 971867A
Authority
GB
United Kingdom
Prior art keywords
shutter
optical
optical viewers
viewers
blosse
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
GB3684263A
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
Priority to GB3684263A priority Critical patent/GB971867A/en
Publication of GB971867A publication Critical patent/GB971867A/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)
  • Optical Elements Other Than Lenses (AREA)

Abstract

971,867. Spy-holes. J. C. J. BLOSSE. Sept. 19, 1963, No. 36842/63. Heading G2J. The optical viewer described in Specification 671, 046 is modified by the provision of a shutter 10 which can be rotated by the bent tongue 11. It is also stated that this shutter can be used as other similar optical devices.
GB3684263A 1963-09-19 1963-09-19 Improvements in optical viewers Expired GB971867A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3684263A GB971867A (en) 1963-09-19 1963-09-19 Improvements in optical viewers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3684263A GB971867A (en) 1963-09-19 1963-09-19 Improvements in optical viewers

Publications (1)

Publication Number Publication Date
GB971867A true GB971867A (en) 1964-10-07

Family

ID=10391622

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3684263A Expired GB971867A (en) 1963-09-19 1963-09-19 Improvements in optical viewers

Country Status (1)

Country Link
GB (1) GB971867A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5357367A (en) * 1991-11-01 1994-10-18 Pinchas Goldstein Spyhole viewer
US5550673A (en) * 1991-11-01 1996-08-27 Goldstein; Pinchas Spyhole viewer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5357367A (en) * 1991-11-01 1994-10-18 Pinchas Goldstein Spyhole viewer
US5550673A (en) * 1991-11-01 1996-08-27 Goldstein; Pinchas Spyhole viewer

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