CH19885A
(en )
1900-10-15
Apparatus for the manufacture of calcium carbide
CH18843A
(en )
1900-03-15
Apparatus for the manufacture of calcium carbide
CH21837A
(en )
1901-10-15
Apparatus for making cement pipes
CH23848A
(en )
1902-09-30
Apparatus for the production of hollow bodies from cement, molding sand or the like
CH18279A
(en )
1899-11-30
Apparatus for the manufacture of alkalis by electrolysis
CH21604A
(en )
1901-08-31
Apparatus for making colored cement tiles
CH18286A
(en )
1899-11-30
Apparatus for the manufacture of corrugated pipes
CH18702A
(en )
1900-02-15
Device for the simultaneous production of several identical documents
CH71161A
(en )
1915-12-01
Process for the production of portland cement
AT1091B
(en )
1900-03-26
Process for the production of artificial stones.
CH19472A
(en )
1900-07-31
Device for the production of two-part pulleys
CH16645A
(en )
1899-01-15
Device for the production of barrel jackets
CH49382A
(en )
1911-02-01
Process for the production of magnesia cement
CH18529A
(en )
1900-01-31
Device for the preparation of acetylene
CH13764A
(en )
1897-10-31
Apparatus for making artificial building blocks
CH17562A
(en )
1899-07-15
Mold for the production of artificial stones
CH18513A
(en )
1900-01-15
Facility for the production of glass panels
CH13964A
(en )
1897-09-15
Forming apparatus for the production of hollow glass bodies
CH14511A
(en )
1897-12-15
Apparatus for producing water gas
AT2651B
(en )
1900-11-10
Process for the production of artificial stones.
CH15258A
(en )
1898-07-15
Device for the production of artificial stones
CH339E
(en )
1901-05-31
Device for the production of artificial stones
CH15716A
(en )
1898-07-15
Improved apparatus for the production of shaped stones (paving bricks etc.
CH8440A
(en )
1894-10-31
Form for the production of perforated cement blocks
CH18917A
(en )
1900-04-30
Carburation apparatus for the production of air gas