FR320254A - Universal automatic photographic rectifier amplifier - Google Patents

Universal automatic photographic rectifier amplifier

Info

Publication number
FR320254A
FR320254A FR320254DA FR320254A FR 320254 A FR320254 A FR 320254A FR 320254D A FR320254D A FR 320254DA FR 320254 A FR320254 A FR 320254A
Authority
FR
France
Prior art keywords
universal automatic
automatic photographic
rectifier amplifier
rectifier
amplifier
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)
Inventor
Pasqueau Alfred
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.)
PASQUEAU ALFRED
Original Assignee
PASQUEAU ALFRED
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 PASQUEAU ALFRED filed Critical PASQUEAU ALFRED
Application granted granted Critical
Publication of FR320254A publication Critical patent/FR320254A/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
    • G03B27/00—Photographic printing apparatus
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/52—Details
    • G03B27/68—Introducing or correcting distortion, e.g. in connection with oblique projection

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR320254D 1902-04-07 1902-04-07 Universal automatic photographic rectifier amplifier Expired FR320254A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR320254T 1902-04-07

Publications (1)

Publication Number Publication Date
FR320254A true FR320254A (en) 1902-12-05

Family

ID=1370773

Family Applications (1)

Application Number Title Priority Date Filing Date
FR320254D Expired FR320254A (en) 1902-04-07 1902-04-07 Universal automatic photographic rectifier amplifier

Country Status (1)

Country Link
FR (1) FR320254A (en)

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