CH508889A - Device for observing small images - Google Patents

Device for observing small images

Info

Publication number
CH508889A
CH508889A CH1646869A CH1646869A CH508889A CH 508889 A CH508889 A CH 508889A CH 1646869 A CH1646869 A CH 1646869A CH 1646869 A CH1646869 A CH 1646869A CH 508889 A CH508889 A CH 508889A
Authority
CH
Switzerland
Prior art keywords
small images
observing small
observing
images
small
Prior art date
Application number
CH1646869A
Other languages
French (fr)
Inventor
Davies George
Wertheimer Hedda
Original Assignee
Davies George
Wertheimer Hedda
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 Davies George, Wertheimer Hedda filed Critical Davies George
Publication of CH508889A publication Critical patent/CH508889A/en

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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/10—Projectors with built-in or built-on screen
    • G03B21/11—Projectors with built-in or built-on screen for microfilm reading

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lenses (AREA)
CH1646869A 1968-11-05 1969-11-05 Device for observing small images CH508889A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB5232268 1968-11-05
GB1612969 1969-03-27
GB3610169 1969-07-17
GB4561369 1969-09-16

Publications (1)

Publication Number Publication Date
CH508889A true CH508889A (en) 1971-06-15

Family

ID=27448343

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1646869A CH508889A (en) 1968-11-05 1969-11-05 Device for observing small images

Country Status (7)

Country Link
BE (1) BE741319A (en)
CH (1) CH508889A (en)
DE (1) DE1955484A1 (en)
DK (1) DK126216B (en)
FR (1) FR2022606A1 (en)
LU (1) LU59750A1 (en)
NL (1) NL6916716A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2633403A1 (en) * 1988-06-22 1989-12-29 Bayer Ag DEVICE FOR DIAGNOSING DISEASES OR PARASITES ON PARTS OF PLANTS

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5543377Y2 (en) * 1971-09-15 1980-10-13

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2633403A1 (en) * 1988-06-22 1989-12-29 Bayer Ag DEVICE FOR DIAGNOSING DISEASES OR PARASITES ON PARTS OF PLANTS

Also Published As

Publication number Publication date
DE1955484A1 (en) 1970-05-14
BE741319A (en) 1970-05-05
LU59750A1 (en) 1970-01-13
DK126216B (en) 1973-06-18
NL6916716A (en) 1970-05-08
FR2022606A1 (en) 1970-07-31

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Legal Events

Date Code Title Description
PL Patent ceased