CH16950A
(en )
1899-03-15
Apparatus for the production of air-free acetylene
CH16645A
(en )
1899-01-15
Device for the production of barrel jackets
CH17621A
(en )
1899-07-15
Apparatus for cooling parts of the body
CH15914A
(en )
1898-08-31
Apparatus for the production of acetylene
CH20353A
(en )
1901-01-31
Apparatus for the production of air-free acetylene
AT21614B
(en )
1905-10-10
Process for the preparation of acetylene tetrachloride.
CH16286A
(en )
1898-10-31
Equipment for the production of acetylene gas
CH17345A
(en )
1899-05-31
Apparatus for the production of pure acetylene
CH13615A
(en )
1897-07-31
Regulator on apparatus for the development of acetylene from calcium carbide
CH20256A
(en )
1900-12-31
Device for making mushroom-like pastries
CH334E
(en )
1901-02-28
Device for the so-called insulation of note trees
CH19139A
(en )
1900-09-30
Device for the so-called insulation of note trees
CH18441A
(en )
1899-12-31
Acetylene generator for the production of completely air-free acetylene
CH19885A
(en )
1900-10-15
Apparatus for the manufacture of calcium carbide
CH18843A
(en )
1900-03-15
Apparatus for the manufacture of calcium carbide
CH18702A
(en )
1900-02-15
Device for the simultaneous production of several identical documents
CH11544A
(en )
1896-10-15
Apparatus for the production of acetylene from calcium carbide
CH18585A
(en )
1900-01-31
Apparatus for the production of Portland cement
CH15258A
(en )
1898-07-15
Device for the production of artificial stones
CH339E
(en )
1901-05-31
Device for the production of artificial stones
CH14971A
(en )
1898-02-28
Device for the production of peat coals
CH23641A
(en )
1902-08-31
Device for the production of water gas
DK1936C
(en )
1898-12-05
Apparatus for the production of acetylene.
CH72823A
(en )
1916-11-01
Process for the preparation of an intermediate product suitable for the preparation of calcium carbide
CH18286A
(en )
1899-11-30
Apparatus for the manufacture of corrugated pipes