CH53540A
(en )
1912-03-01
Device for cleaning utensils
CH54277A
(en )
1912-05-17
Device for cleaning pipelines
CH51400A
(en )
1911-09-01
Device for cleaning floors
CH46846A
(en )
1910-04-16
Device for cleaning cheese kettles
CH51503A
(en )
1911-09-01
Device for cleaning tobacco pipes
CH47925A
(en )
1910-08-16
Device for serving food
CH70411A
(en )
1915-09-16
Device for cleaning floors
CH53767A
(en )
1912-04-01
Device for baking cakes
CH65715A
(en )
1914-07-16
Device for cleaning laundry
CH44062A
(en )
1909-07-01
Device for cleaning dishes
CH66461A
(en )
1914-09-16
Device for cleaning pipes
CH47647A
(en )
1910-07-16
Device for cleaning floors
CH51787A
(en )
1911-09-16
Device for cleaning lamp cylinders
CH63551A
(en )
1914-02-02
Apparatus for cleaning laundry
CH66304A
(en )
1914-08-17
Device for cleaning the laundry
CH48439A
(en )
1910-10-17
Device for cleaning knives
CH67398A
(en )
1914-12-01
Device for cleaning, wanking, etc. of floors
CH56316A
(en )
1912-10-16
Device for cleaning shop windows
CH64240A
(en )
1914-03-16
Methods for cleaning oils, wax, tar and the like
CH70122A
(en )
1915-09-01
Device for cleaning liquids
CH70742A
(en )
1915-11-01
Device for cleaning beer pipes
CH49772A
(en )
1911-03-16
Device for testing eggs
CH47920A
(en )
1910-09-01
Device for mechanical cleaning of dishes
CH53790A
(en )
1912-04-01
Device for cleaning drawing springs
CH57241A
(en )
1912-12-16
Device for washing kitchen dishes