HK94789A - Improvements relating to felt material and the manufacture and use thereof - Google Patents

Improvements relating to felt material and the manufacture and use thereof

Info

Publication number
HK94789A
HK94789A HK94789A HK94789A HK94789A HK 94789 A HK94789 A HK 94789A HK 94789 A HK94789 A HK 94789A HK 94789 A HK94789 A HK 94789A HK 94789 A HK94789 A HK 94789A
Authority
HK
Hong Kong
Prior art keywords
manufacture
improvements relating
felt material
felt
relating
Prior art date
Application number
HK94789A
Inventor
Eric Wood
Original Assignee
Insituform Technical Services
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
Priority claimed from GB8123343A external-priority patent/GB2080844B/en
Application filed by Insituform Technical Services filed Critical Insituform Technical Services
Publication of HK94789A publication Critical patent/HK94789A/en

Links

HK94789A 1980-07-31 1989-11-30 Improvements relating to felt material and the manufacture and use thereof HK94789A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB8025043 1980-07-31
GB8105184 1981-02-19
GB8123343A GB2080844B (en) 1980-07-31 1981-07-30 Felt containing filler

Publications (1)

Publication Number Publication Date
HK94789A true HK94789A (en) 1989-12-08

Family

ID=27260974

Family Applications (1)

Application Number Title Priority Date Filing Date
HK94789A HK94789A (en) 1980-07-31 1989-11-30 Improvements relating to felt material and the manufacture and use thereof

Country Status (1)

Country Link
HK (1) HK94789A (en)

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)