CH71731A
(en )
1916-02-16
Method and device for cleaning steam boiler tubes
CH75130A
(en )
1917-06-01
Method and device for cleaning animals
CH57972A
(en )
1913-02-01
Method and device for hopping beer
CH69856A
(en )
1915-08-02
Method and device for cleaning dental tools
CH73671A
(en )
1916-11-01
Method and device for cleaning pipes and hoses
CH58281A
(en )
1913-03-01
Cleaning apparatus for boiler tubes and the like
CH54277A
(en )
1912-05-17
Device for cleaning pipelines
CH63698A
(en )
1914-02-16
Method and device for sealing gas pipes
CH72856A
(en )
1916-07-17
Process for drawing thin-walled pipes
CH62004A
(en )
1913-11-01
Cleaning apparatus for pipes of water-tube boilers and the like
DK24081C
(en )
1919-02-10
Method and Apparatus for Cleaning Steam Boiler Pipes.
CH66461A
(en )
1914-09-16
Device for cleaning pipes
CH55622A
(en )
1912-09-02
Process for operating cold steam engines
CH74314A
(en )
1917-02-16
Apparatus for cleaning pipelines
CH74826A
(en )
1917-04-16
Method and device for burning and utilizing flue gases
NL13C
(en )
1913-07-01
Device on flow-through evaporators
CH57521A
(en )
1913-01-16
Method and device for drying pasta
CH65408A
(en )
1914-06-16
Method and device for operating steam engines with intermediate steam extraction
CH61422A
(en )
1913-10-01
Method and device for cleaning liquid, natural hydrocarbons
CH70742A
(en )
1915-11-01
Device for cleaning beer pipes
CH51503A
(en )
1911-09-01
Device for cleaning tobacco pipes
FR482705A
(en )
1917-04-20
Apparatus for cleaning the smoke tubes of steam boilers
CH54315A
(en )
1912-05-01
Method and device for drying pasta
CH51918A
(en )
1911-10-02
Device for cleaning the joint ends of drainage pipes
CH70122A
(en )
1915-09-01
Device for cleaning liquids