NO149463C - Magnetisk anvisningstavle. - Google Patents

Magnetisk anvisningstavle.

Info

Publication number
NO149463C
NO149463C NO780179A NO780179A NO149463C NO 149463 C NO149463 C NO 149463C NO 780179 A NO780179 A NO 780179A NO 780179 A NO780179 A NO 780179A NO 149463 C NO149463 C NO 149463C
Authority
NO
Norway
Prior art keywords
guide board
magnetic guide
magnetic
board
guide
Prior art date
Application number
NO780179A
Other languages
English (en)
Norwegian (no)
Other versions
NO149463B (no
NO780179L (no
Inventor
Yasuzo Murata
Takeo Yokoyama
Hiroshi Murata
Original Assignee
Pilot Pen Co 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=12600771&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=NO149463(C) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Pilot Pen Co Ltd filed Critical Pilot Pen Co Ltd
Publication of NO780179L publication Critical patent/NO780179L/no
Publication of NO149463B publication Critical patent/NO149463B/no
Publication of NO149463C publication Critical patent/NO149463C/no

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
    • B43L1/008—Repeatedly-usable boards or tablets for writing or drawing with magnetic action
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/09—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on magneto-optical elements, e.g. exhibiting Faraday effect
    • G02F1/094—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on magneto-optical elements, e.g. exhibiting Faraday effect based on magnetophoretic effect
NO780179A 1977-04-11 1978-01-18 Magnetisk anvisningstavle. NO149463C (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52041164A JPS5947676B2 (ja) 1977-04-11 1977-04-11 磁気パネル

Publications (3)

Publication Number Publication Date
NO780179L NO780179L (no) 1978-10-12
NO149463B NO149463B (no) 1984-01-16
NO149463C true NO149463C (no) 1984-04-25

Family

ID=12600771

Family Applications (1)

Application Number Title Priority Date Filing Date
NO780179A NO149463C (no) 1977-04-11 1978-01-18 Magnetisk anvisningstavle.

Country Status (15)

Country Link
US (1) US4143472A (ja)
JP (1) JPS5947676B2 (ja)
AU (1) AU506215B2 (ja)
CA (1) CA1089964A (ja)
DE (1) DE2802096C2 (ja)
DK (1) DK153067C (ja)
ES (2) ES468687A1 (ja)
FR (1) FR2387484A1 (ja)
GB (2) GB1584521A (ja)
HK (1) HK37181A (ja)
IT (1) IT1101934B (ja)
MY (1) MY8200073A (ja)
NO (1) NO149463C (ja)
PH (1) PH20317A (ja)
SE (1) SE438214B (ja)

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Also Published As

Publication number Publication date
NO149463B (no) 1984-01-16
HK37181A (en) 1981-07-31
GB1584521A (en) 1981-02-11
DE2802096C2 (de) 1982-06-09
DK153067B (da) 1988-06-13
SE438214B (sv) 1985-04-01
IT1101934B (it) 1985-10-07
DE2802096A1 (de) 1978-10-12
DK28178A (da) 1978-10-12
US4143472A (en) 1979-03-13
ES477093A1 (es) 1980-03-01
CA1089964A (en) 1980-11-18
IT7847683A0 (it) 1978-01-18
NO780179L (no) 1978-10-12
ES468687A1 (es) 1979-09-16
PH20317A (en) 1986-11-25
FR2387484A1 (fr) 1978-11-10
MY8200073A (en) 1982-12-31
JPS53127032A (en) 1978-11-06
AU3279778A (en) 1979-08-02
JPS5947676B2 (ja) 1984-11-20
FR2387484B1 (ja) 1981-12-31
DK153067C (da) 1988-10-31
SE7800616L (sv) 1978-10-12
AU506215B2 (en) 1979-12-20
GB1584522A (en) 1981-02-11

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