|
US4011395A
(en)
|
|
Electric furnace heater
|
|
US2658094A
(en)
|
|
Combined electrode and skimmer for electric glass melting furnaces
|
|
KR101078626B1
(ko)
|
|
복사 튜브를 포함하는 전기 가열 요소
|
|
US1923644A
(en)
|
|
Electric heating furnace
|
|
US3935376A
(en)
|
|
Ceramic insulator for supporting a ribbon-type heating element
|
|
EP1010355B1
(en)
|
|
Electric furnace assembly
|
|
US3804967A
(en)
|
|
Rectangular tube diffusion furnace
|
|
US3984615A
(en)
|
|
Electrical resistance furnace heater
|
|
US3299196A
(en)
|
|
Diffusion furnace
|
|
PL55710B1
(cs)
|
|
|
|
US3346723A
(en)
|
|
Electric infrared emitter
|
|
US3729570A
(en)
|
|
Modular heater furnace
|
|
US4392052A
(en)
|
|
Device for carrying electrical resistance elements
|
|
US2266002A
(en)
|
|
Electric furnace
|
|
US8450663B2
(en)
|
|
Electrical heating element for vertical installation
|
|
US3302621A
(en)
|
|
Method of supporting horizontal heater tubes fired from both sides
|
|
US1719888A
(en)
|
|
Electric furnace
|
|
GB2079120A
(en)
|
|
Device for carrying electrical resistance heating elements
|
|
US2981820A
(en)
|
|
Electrically heated furnace
|
|
US1673543A
(en)
|
|
Electric furnace
|
|
US1751408A
(en)
|
|
Electric furnace
|
|
US3786165A
(en)
|
|
Preheating method for furnaces
|
|
US1652200A
(en)
|
|
Electric resistance furnace
|
|
US1809227A
(en)
|
|
Metallic resistor element
|
|
US1555292A
(en)
|
|
Electric-furnace heating unit |