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WT Henleys Telegraph Works Co Ltd

WT Henleys

Active Patents

0

Total Holdings

5

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
GB499908A	Improvements in or relating to insulated electric conductors	Expired / Lapsed	1937-10-20	—	0	Details
AU172736A	Improvements relating to junction boxes	Expired / Lapsed	1936-05-02	—	0	Details
US2428480A	Buoyant electric cable	Expired / Lapsed	1942-08-25	1947-10-07	0	Details
US2087783A	Means for testing electric insulation	Expired / Lapsed	1935-12-27	1937-07-20	0	Details
US1817301A	Extrusion of metal pipes and the like	Expired / Lapsed	1930-06-26	1931-08-04	0	Details