SE388784B - Anordning for maskerad observation av visuell information - Google Patents

Anordning for maskerad observation av visuell information

Info

Publication number
SE388784B
SE388784B SE7208845A SE884572A SE388784B SE 388784 B SE388784 B SE 388784B SE 7208845 A SE7208845 A SE 7208845A SE 884572 A SE884572 A SE 884572A SE 388784 B SE388784 B SE 388784B
Authority
SE
Sweden
Prior art keywords
masked
observation
visual information
visual
information
Prior art date
Application number
SE7208845A
Other languages
English (en)
Inventor
H N Braunhult
Original Assignee
H N Braunhult
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 H N Braunhult filed Critical H N Braunhult
Publication of SE388784B publication Critical patent/SE388784B/sv

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Laminated Bodies (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Credit Cards Or The Like (AREA)
SE7208845A 1971-11-01 1972-07-05 Anordning for maskerad observation av visuell information SE388784B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US19442271A 1971-11-01 1971-11-01

Publications (1)

Publication Number Publication Date
SE388784B true SE388784B (sv) 1976-10-18

Family

ID=22717545

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7208845A SE388784B (sv) 1971-11-01 1972-07-05 Anordning for maskerad observation av visuell information

Country Status (8)

Country Link
US (1) US3750316A (sv)
AU (1) AU4419872A (sv)
CA (1) CA963255A (sv)
DE (1) DE2233961A1 (sv)
FR (1) FR2159869A5 (sv)
GB (1) GB1380357A (sv)
SE (1) SE388784B (sv)
ZA (1) ZA724493B (sv)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3878631A (en) * 1972-03-03 1975-04-22 Wurlitzer Co Program holder for a juke box or the like
US4025673A (en) * 1972-04-13 1977-05-24 Reinnagel Richard E Method of forming copy resistant documents by forming an orderly array of fibers extending upward from a surface, coating the fibers and printing the coated fibers and the copy resistant document resulting from said method

Also Published As

Publication number Publication date
AU4419872A (en) 1974-01-10
DE2233961A1 (de) 1973-05-24
GB1380357A (en) 1975-01-15
FR2159869A5 (sv) 1973-06-22
ZA724493B (en) 1973-03-28
US3750316A (en) 1973-08-07
CA963255A (en) 1975-02-25

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