CH18993A
(en )
1900-04-15
Apparatus for the production of inorganic dyes by means of electrolysis
CH19896A
(en )
1900-10-15
Apparatus for the electrolysis of solutions
CH18279A
(en )
1899-11-30
Apparatus for the manufacture of alkalis by electrolysis
CH20353A
(en )
1901-01-31
Apparatus for the production of air-free acetylene
CH13964A
(en )
1897-09-15
Forming apparatus for the production of hollow glass bodies
CH19885A
(en )
1900-10-15
Apparatus for the manufacture of calcium carbide
CH18843A
(en )
1900-03-15
Apparatus for the manufacture of calcium carbide
CH20261A
(en )
1900-12-31
Apparatus for the production of compressed gas
CH16950A
(en )
1899-03-15
Apparatus for the production of air-free acetylene
CH14511A
(en )
1897-12-15
Apparatus for producing water gas
CH18696A
(en )
1900-03-15
Apparatus for the production of consistent alcohol
DK1936C
(en )
1898-12-05
Apparatus for the production of acetylene.
CH18585A
(en )
1900-01-31
Apparatus for the production of Portland cement
CH30081A
(en )
1904-11-15
Apparatus for the production of alkali metals by means of electrolysis
CH21837A
(en )
1901-10-15
Apparatus for making cement pipes
AT1091B
(en )
1900-03-26
Process for the production of artificial stones.
DK3445C
(en )
1900-10-15
Apparatus for the production of acetylene.
CH21604A
(en )
1901-08-31
Apparatus for making colored cement tiles
CH16586A
(en )
1898-12-31
Apparatus for improving handwriting
CH23104A
(en )
1902-05-31
Apparatus for the production of solid alkali silicate from alkali silicate solution
CH16092A
(en )
1898-09-30
Apparatus for producing acetylene gas
CH18919A
(en )
1900-03-31
Apparatus for producing acetylene
CH16579A
(en )
1898-12-31
Apparatus for piece dyeing
AT1145B
(en )
1900-04-10
Process for the production of artificial stones.
CH17345A
(en )
1899-05-31
Apparatus for the production of pure acetylene