CH13093A
(en )
1897-04-30
Apparatus for the manufacture of artificial stone
CH12316A
(en )
1896-11-30
New apparatus for the manufacture of acetylene
CH16014A
(en )
1898-09-15
Apparatus for the production of calcium carbide
CH15916A
(en )
1898-08-15
Apparatus for the manufacture of acetylene
CH14800A
(en )
1898-02-28
Advanced apparatus for the manufacture of acetylene
CH11975A
(en )
1896-09-15
Orthopedic apparatus
CH17022A
(en )
1899-03-31
New apparatus for the manufacture of acetylene
CH12244A
(en )
1896-11-30
Apparatus for the production of ozone
CH14632A
(en )
1898-01-15
Device for the continuous production of ozone
FR342295A
(en )
1904-09-03
Apparatus for the production of ozone
CH12742A
(en )
1897-02-15
Apparatus for the production of acetylene
FR331404A
(en )
1903-09-12
Apparatus for the production of artificial threads
CH17343A
(en )
1899-05-31
Apparatus for the production of acetylene
FR336492A
(en )
1904-03-10
Apparatus for the production of acetylene
FR329133A
(en )
1903-07-25
Apparatus for the production of acetylene
CH12477A
(en )
1896-12-31
An apparatus for the production of acetylene
CH15138A
(en )
1898-03-31
Advanced apparatus for the manufacture of acetylene
FR328917A
(en )
1903-07-23
Apparatus for the manufacture of Portland cement
FR347224A
(en )
1905-02-28
Apparatus for detecting the shape of bodies
FR329872A
(en )
1903-08-08
Device for the manufacture of artificial stone bricks
CH11521A
(en )
1896-08-15
Artificial stone
CH13414A
(en )
1897-06-30
Self-regulating device for the production of acetylene
FR362418A
(en )
1906-06-23
Process for the production of artificial stone
CH17092A
(en )
1899-04-15
Apparatus for producing acetylen
CH24230A
(en )
1902-11-30
Apparatus for the production of fluorine