GB9109141D0 - Improvements in or relating to filter arrangements - Google Patents

Improvements in or relating to filter arrangements

Info

Publication number
GB9109141D0
GB9109141D0 GB9109141A GB9109141A GB9109141D0 GB 9109141 D0 GB9109141 D0 GB 9109141D0 GB 9109141 A GB9109141 A GB 9109141A GB 9109141 A GB9109141 A GB 9109141A GB 9109141 D0 GB9109141 D0 GB 9109141D0
Authority
GB
Grant status
Grant
Patent type
Prior art keywords
relating
improvements
filter arrangements
arrangements
filter
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
GB9109141A
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.)
KINGSTON COMMUNICATIONS (HULL) PLC
KINGSTON COMMUNICATIONS HULL P
Original Assignee
KINGSTON COMMUNICATIONS (HULL) PLC
KINGSTON COMMUNICATIONS HULL P
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
Grant date

Links

GB9109141A 1991-04-27 1991-04-27 Improvements in or relating to filter arrangements Pending GB9109141D0 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9109141A GB9109141D0 (en) 1991-04-27 1991-04-27 Improvements in or relating to filter arrangements

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9109141A GB9109141D0 (en) 1991-04-27 1991-04-27 Improvements in or relating to filter arrangements
GB9209092A GB9209092D0 (en) 1991-04-27 1992-04-27 Improvements in or relating to filter arrangements

Publications (1)

Publication Number Publication Date
GB9109141D0 true GB9109141D0 (en) 1991-06-12

Family

ID=10694094

Family Applications (2)

Application Number Title Priority Date Filing Date
GB9109141A Pending GB9109141D0 (en) 1991-04-27 1991-04-27 Improvements in or relating to filter arrangements
GB9209092A Withdrawn GB9209092D0 (en) 1991-04-27 1992-04-27 Improvements in or relating to filter arrangements

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB9209092A Withdrawn GB9209092D0 (en) 1991-04-27 1992-04-27 Improvements in or relating to filter arrangements

Country Status (1)

Country Link
GB (2) GB9109141D0 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6920000B2 (en) * 2002-09-19 2005-07-19 Hewlett-Packard Development Company, L.P. Filter for a display system
CN105278018B (en) * 2015-11-05 2018-06-12 中国科学院国家天文台 Kinds of liquid crystal waveplate of the birefringent filter

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB426269A (en) * 1933-09-30 1935-04-01 Ensor Roslyn Holiday Improvements in and relating to screens for varying the colour and/or intensity of abeam of light
GB698074A (en) * 1945-06-19 1953-10-07 Luis Rodriguez Aparicio Variable filter screens
NL182242B (en) * 1952-11-07 Multinorm Bv A device for transferring a rotational motion into an oscillating motion.
EP0065362A1 (en) * 1981-04-27 1982-11-24 David Fenton Fenner Light filter
GB2191602B (en) * 1986-06-09 1989-12-13 Donnelly Mirrors Ltd Fluid light controlling medium for a vehicle rear view mirror

Also Published As

Publication number Publication date Type
GB2255201A (en) 1992-10-28 application
GB9209092D0 (en) 1992-06-10 grant

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