FR367376A
(en )
1906-10-27
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FR322834A
(en )
1903-02-16
Apparatus for the manufacture of anhydrous sulfuric acid
CH39050A
(en )
1908-01-16
Apparatus for the concentration of sulfuric acid
CH12244A
(en )
1896-11-30
Apparatus for the production of ozone
FR336492A
(en )
1904-03-10
Apparatus for the production of acetylene
FR329133A
(en )
1903-07-25
Apparatus for the production of acetylene
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(en )
1909-04-03
Apparatus for the production of nitrogen acid
CH12742A
(en )
1897-02-15
Apparatus for the production of acetylene
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(en )
1913-12-08
Method and apparatus for concentrating and distilling sulfuric acid
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(en )
1910-11-18
Method and apparatus for the production by electrolysis of metals and acid
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(en )
1902-12-19
Improved process for the manufacture of hydrochloric acid
CH28786A
(en )
1904-06-15
Apparatus for the production of acetylene
CH17343A
(en )
1899-05-31
Apparatus for the production of acetylene
CH16820A
(en )
1899-02-28
An apparatus for the production of pure carbonic acid
CH12477A
(en )
1896-12-31
An apparatus for the production of acetylene
CH15916A
(en )
1898-08-15
Apparatus for the manufacture of acetylene
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(en )
1904-09-21
Production of w-cyanomethylanthranilic acid
FR13752E
(en )
1911-06-30
Apparatus for the production of sulfurous acid
FR420596A
(en )
1911-02-02
Apparatus for the production of sulfurous acid
CH12316A
(en )
1896-11-30
New apparatus for the manufacture of acetylene
FR472366A
(en )
1914-12-03
Apparatus for the manufacture of sulfuric acid
FR11633E
(en )
1910-03-30
Process for the production of sulfuric acid using towers
CH13521A
(en )
1897-07-15
Apparatus for the production of acetylene
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(en )
1904-11-17
Process for the simultaneous production and separation of muriatic acid and sulfuric acid
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(en )
1904-01-27
Process for the simultaneous production and separation of muriatic acid and sulfuric acid