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Electric Furnace Co

Electric F

Active Patents

0

Total Holdings

5

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
GB471708A	Improvements relating to electric induction apparatus for h…	Expired / Lapsed	1936-11-17	—	0	Details
GB461370A	Improvements in or relating to thermo-couples for use in th…	Expired / Lapsed	1935-11-12	—	0	Details
GB435343A	Improvements relating to heating and quenching metals and c…	Expired / Lapsed	1934-08-24	—	0	Details
US2049947A	Method of testing gas	Expired / Lapsed	1933-08-19	1936-08-04	0	Details
US769250A	Electric furnace.	Expired / Lapsed	1902-10-01	1904-09-06	0	Details