FR788122A - Improvements relating to projection systems - Google Patents

Improvements relating to projection systems

Info

Publication number
FR788122A
FR788122A FR788122DA FR788122A FR 788122 A FR788122 A FR 788122A FR 788122D A FR788122D A FR 788122DA FR 788122 A FR788122 A FR 788122A
Authority
FR
France
Prior art keywords
improvements relating
projection systems
projection
systems
relating
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
Other languages
French (fr)
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.)
TRANS-LUX DAYLIGHT PICTURE SCREEN Corp
Trans Lux Daylight Picture Screen Corp
Original Assignee
TRANS-LUX DAYLIGHT PICTURE SCREEN Corp
Trans Lux Daylight Picture Screen Corp
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 TRANS-LUX DAYLIGHT PICTURE SCREEN Corp, Trans Lux Daylight Picture Screen Corp filed Critical TRANS-LUX DAYLIGHT PICTURE SCREEN Corp
Application granted granted Critical
Publication of FR788122A publication Critical patent/FR788122A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
FR788122D 1935-04-01 1935-04-01 Improvements relating to projection systems Expired FR788122A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR788122T 1935-04-01

Publications (1)

Publication Number Publication Date
FR788122A true FR788122A (en) 1935-10-04

Family

ID=9219335

Family Applications (1)

Application Number Title Priority Date Filing Date
FR788122D Expired FR788122A (en) 1935-04-01 1935-04-01 Improvements relating to projection systems

Country Status (1)

Country Link
FR (1) FR788122A (en)

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