NL164396C - OVERHEAD PROJECTOR WITH ANTI-GLARE DISPLAY. - Google Patents

OVERHEAD PROJECTOR WITH ANTI-GLARE DISPLAY.

Info

Publication number
NL164396C
NL164396C NL6815702.A NL164396DA NL164396C NL 164396 C NL164396 C NL 164396C NL 164396D A NL164396D A NL 164396DA NL 164396 C NL164396 C NL 164396C
Authority
NL
Netherlands
Prior art keywords
overhead projector
glare display
glare
display
projector
Prior art date
Application number
NL6815702.A
Other languages
Dutch (nl)
Original Assignee
Minnesota Mining & Mfg
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.)
Publication of NL164396C publication Critical patent/NL164396C/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
    • E04B2/14—Walls having cavities in, but not between, the elements, i.e. each cavity being enclosed by at least four sides forming part of one single element
    • E04B2/22—Walls having cavities in, but not between, the elements, i.e. each cavity being enclosed by at least four sides forming part of one single element using elements having a general shape differing from that of a parallelepiped

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
NL6815702.A 1950-12-18 OVERHEAD PROJECTOR WITH ANTI-GLARE DISPLAY. NL164396C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1029835T 1950-12-18

Publications (1)

Publication Number Publication Date
NL164396C true NL164396C (en)

Family

ID=9582087

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6815702.A NL164396C (en) 1950-12-18 OVERHEAD PROJECTOR WITH ANTI-GLARE DISPLAY.

Country Status (2)

Country Link
FR (1) FR1029835A (en)
NL (1) NL164396C (en)

Also Published As

Publication number Publication date
FR1029835A (en) 1953-06-08

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