Apparatus for controlling a combined heating boiler for service water and central-heating water
ES293069A1
Installation to heat at least two containers (Machine-translation by Google Translate, not legally binding)
ES236211A1
Procedure for toasting coffee grains and toaster machine for the practice of this procedure. (Machine-translation by Google Translate, not legally binding)
CH346855A
Fully automatic washing machine
CA604527A
Coffee roasting machine
CA653649A
Hot water heating plant
CA765605A
Apparatus for heating at least two vessels by a single source of heat
