CH17145A
(en )
1899-04-30
Cooling system with air circulation and ventilation
CH22338A
(en )
1902-01-15
Air humidifier at the same time air deduster and air cooler
CH16165A
(en )
1898-09-30
Equipment for heating and ventilating or cooling and ventilating trees
CH18691A
(en )
1900-03-15
Cold room with ventilation device
CH17724A
(en )
1899-08-31
Ventilation device in cold rooms
CH322E
(en )
1900-08-31
Ventilation device in cold rooms
CH16641A
(en )
1898-12-31
Air humidifier
CH17316A
(en )
1899-05-31
Air humidifier
DK88C
(en )
1895-07-01
Device for Achieving Circulation or Movement of Air in Heating, Ventilation and Similar Installations.
FR339981A
(en )
1904-06-23
Ventilation, heating, humidification and air cooling system
CH17567A
(en )
1899-06-30
Covering for radiators and heating openings
ES22267A1
(en )
1898-03-16
A procedure for heating and ventilating or for cooling and ventilating closed rooms.
CH13297A
(en )
1897-06-15
fan
CH16491A
(en )
1898-11-30
Ventilation apparatus
CH17087A
(en )
1899-04-30
Milk cooling system
CH16890A
(en )
1899-02-28
Dry air refrigerator.
CH21455A
(en )
1901-08-15
Cooling system with device for automatic air circulation
DK3325C
(en )
1900-08-27
Fan with variable Outflow direction.
CH11376A
(en )
1896-06-15
Central heating and ventilation oven
CH18031A
(en )
1899-09-30
Novel cooling system
CH18894A
(en )
1900-03-31
Central heating and ventilation equipment in buildings and apartments
CH16733A
(en )
1899-01-31
Further training in heating and ventilation systems for premises heated with hot air
CH19680A
(en )
1900-08-31
Ventilation device for simultaneous ventilation of several surrounding parts of the room
DK1905C
(en )
1898-11-21
Air heater.
DK1745C
(en )
1898-08-15
Air heater.