CA963255A - Device for secretly observing visual intelligence - Google Patents

Device for secretly observing visual intelligence

Info

Publication number
CA963255A
CA963255A CA146,177A CA146177A CA963255A CA 963255 A CA963255 A CA 963255A CA 146177 A CA146177 A CA 146177A CA 963255 A CA963255 A CA 963255A
Authority
CA
Canada
Prior art keywords
secretly
observing visual
visual intelligence
intelligence
observing
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
CA146,177A
Other languages
English (en)
Other versions
CA146177S (en
Inventor
Harold N. Braunhut
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
Application granted granted Critical
Publication of CA963255A publication Critical patent/CA963255A/en
Expired legal-status Critical Current

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)
CA146,177A 1971-11-01 1972-06-30 Device for secretly observing visual intelligence Expired CA963255A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
CA963255A true CA963255A (en) 1975-02-25

Family

ID=22717545

Family Applications (1)

Application Number Title Priority Date Filing Date
CA146,177A Expired CA963255A (en) 1971-11-01 1972-06-30 Device for secretly observing visual intelligence

Country Status (8)

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

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
SE388784B (sv) 1976-10-18
US3750316A (en) 1973-08-07
ZA724493B (en) 1973-03-28
DE2233961A1 (de) 1973-05-24
GB1380357A (en) 1975-01-15
FR2159869A5 (fr) 1973-06-22

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