CH67764A
(en )
1915-01-02
Device for collecting floating matter from sewage
CH66461A
(en )
1914-09-16
Device for cleaning pipes
CH56987A
(en )
1912-12-02
Device for closing drains
CH64152A
(en )
1914-03-16
Device for collecting street rubbish
CH49640A
(en )
1911-03-01
Device for the automatic removal of block calendar sheets
CH54277A
(en )
1912-05-17
Device for cleaning pipelines
CH65742A
(en )
1914-07-16
Device for purifying waste water
CH64427A
(en )
1914-04-01
Device for emptying several cesspools at the same time
CH61994A
(en )
1913-11-01
Device for holding barrels
CH60472A
(en )
1913-07-16
Device for removing the manure from shoes
CH59487A
(en )
1913-05-16
Device for removing elastic media
CH69538A
(en )
1915-07-01
Device for pushing up water
CH60993A
(en )
1913-09-01
Device for settling light suspended matter from sewage
CH65553A
(en )
1914-06-16
Device to facilitate reading
CH65210A
(en )
1914-06-01
Device for dewatering steam and cleaning sludge parts thereof
CH61566A
(en )
1913-10-01
Device for holding objects
CH70742A
(en )
1915-11-01
Device for cleaning beer pipes
CH64026A
(en )
1914-03-02
Device for showing cinematograms
CH63170A
(en )
1914-01-16
Device for the automatic taking of samples
CH69735A
(en )
1915-07-16
Device for cleaning sludge shafts
CH65715A
(en )
1914-07-16
Device for cleaning laundry
CH52916A
(en )
1912-01-02
Device for sharpening writing materials
CH56565A
(en )
1912-11-16
Device for transferring drawings
CH65674A
(en )
1914-07-01
Device for coupling support timber
CH51585A
(en )
1911-09-01
Device for filling cesspools from cesspools