FR1158069A - Improvements to view projection devices - Google Patents

Improvements to view projection devices

Info

Publication number
FR1158069A
FR1158069A FR1158069DA FR1158069A FR 1158069 A FR1158069 A FR 1158069A FR 1158069D A FR1158069D A FR 1158069DA FR 1158069 A FR1158069 A FR 1158069A
Authority
FR
France
Prior art keywords
projection devices
view projection
view
devices
projection
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.)
Bell and Howell Co
Original Assignee
Bell and Howell Co
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 Bell and Howell Co filed Critical Bell and Howell Co
Application granted granted Critical
Publication of FR1158069A publication Critical patent/FR1158069A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B23/00—Devices for changing pictures in viewing apparatus or projectors
    • G03B23/02—Devices for changing pictures in viewing apparatus or projectors in which a picture is removed from a stock and returned to the same stock or another one; Magazines therefor
    • G03B23/04—Devices for changing pictures in viewing apparatus or projectors in which a picture is removed from a stock and returned to the same stock or another one; Magazines therefor with linear movement
    • G03B23/046—Picture changing devices

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR1158069D 1955-12-22 1956-09-24 Improvements to view projection devices Expired FR1158069A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1158069XA 1955-12-22 1955-12-22

Publications (1)

Publication Number Publication Date
FR1158069A true FR1158069A (en) 1958-06-06

Family

ID=22363505

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1158069D Expired FR1158069A (en) 1955-12-22 1956-09-24 Improvements to view projection devices

Country Status (1)

Country Link
FR (1) FR1158069A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3079840A (en) * 1960-03-07 1963-03-05 G M Lab Inc Automatic slide projector
EP2777807A1 (en) 2013-03-14 2014-09-17 Bottura, Francesco Device and method for packaging a composition of matter into pellets

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3079840A (en) * 1960-03-07 1963-03-05 G M Lab Inc Automatic slide projector
EP2777807A1 (en) 2013-03-14 2014-09-17 Bottura, Francesco Device and method for packaging a composition of matter into pellets

Similar Documents

Publication Publication Date Title
FR1136465A (en) Improvements to proximity devices
FR1141377A (en) Improvements to germiners
FR1138768A (en) Improvements to photoelasticimeters
FR1127947A (en) Improvements to retinographs
FR1122422A (en) Improvements made to weft-passing devices on looms
FR1152648A (en) Improvements to electromagnetic devices
FR1137662A (en) Improvements to modulation devices
FR1150740A (en) Improvements to reactor-boilers
FR1158069A (en) Improvements to view projection devices
FR1129317A (en) Improvements to disgorgers
FR1138539A (en) Improvements to beds or similar devices
FR1130578A (en) Improvements to combustion devices
FR1129189A (en) Improvements to electromagnetic devices
FR1142181A (en) Improvements to electroluminescent devices
FR1130772A (en) Improvements to closure devices
FR1149227A (en) Improvements to blocking mechanisms
FR1127984A (en) Improvements to contactor devices
FR1153214A (en) Improvements to combustion devices
FR1134202A (en) Improvements to proximity telemetry devices
FR1129131A (en) Improvements to flashing devices
FR1141509A (en) Improvements to guiding devices
FR1128195A (en) Improvements to warning devices
FR1124726A (en) Improvements to projection lanterns
FR1125736A (en) Improvements to cardioscopes
FR1124190A (en) Improvements to stato-reactors