JPS52109349A - Information reference equipment - Google Patents

Information reference equipment

Info

Publication number
JPS52109349A
JPS52109349A JP2587176A JP2587176A JPS52109349A JP S52109349 A JPS52109349 A JP S52109349A JP 2587176 A JP2587176 A JP 2587176A JP 2587176 A JP2587176 A JP 2587176A JP S52109349 A JPS52109349 A JP S52109349A
Authority
JP
Japan
Prior art keywords
information reference
reference equipment
mark
information
magnifications
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.)
Pending
Application number
JP2587176A
Other languages
Japanese (ja)
Inventor
Shigeru Uchida
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP2587176A priority Critical patent/JPS52109349A/en
Publication of JPS52109349A publication Critical patent/JPS52109349A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To obtain the equipment easily operated by providing the mark equivalent to the each information partition to the information medium, by detecting this mark and by automatically alternating the magnifications of the photo system to eliminate the operations for the lens alternation unit.
COPYRIGHT: (C)1977,JPO&Japio
JP2587176A 1976-03-10 1976-03-10 Information reference equipment Pending JPS52109349A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2587176A JPS52109349A (en) 1976-03-10 1976-03-10 Information reference equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2587176A JPS52109349A (en) 1976-03-10 1976-03-10 Information reference equipment

Publications (1)

Publication Number Publication Date
JPS52109349A true JPS52109349A (en) 1977-09-13

Family

ID=12177841

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2587176A Pending JPS52109349A (en) 1976-03-10 1976-03-10 Information reference equipment

Country Status (1)

Country Link
JP (1) JPS52109349A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6232434A (en) * 1985-08-05 1987-02-12 Minolta Camera Co Ltd Microfilm
US4875768A (en) * 1987-04-03 1989-10-24 Minolta Camera Kabushiki Kaisha Microfiche reading apparatus
US4952052A (en) * 1987-05-08 1990-08-28 Minolta Camera Kabushiki Kaisha Microfilm reader for microfiche films

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6232434A (en) * 1985-08-05 1987-02-12 Minolta Camera Co Ltd Microfilm
US4875768A (en) * 1987-04-03 1989-10-24 Minolta Camera Kabushiki Kaisha Microfiche reading apparatus
US4952052A (en) * 1987-05-08 1990-08-28 Minolta Camera Kabushiki Kaisha Microfilm reader for microfiche films

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