FR624540A
(en )
1927-07-20
Method and apparatus for the production of purified cream of tartar and tartaric acid
FR642057A
(en )
1928-08-21
Process for the production of solid carbonic acid
FR656108A
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1929-04-26
Method and apparatus for the concentration of nitric acid
FR779735A
(en )
1935-04-11
Method and apparatus for the production of ozone
FR672767A
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1930-01-07
Method and apparatus for the manufacture of solid carbonic acid
FR709662A
(en )
1931-08-12
Electrolytic method and apparatus for the purification of acetic acid solutions and the like
FR644691A
(en )
1928-10-12
Method and device for the concentration of nitrogen acid
FR642361A
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1928-08-28
Process and apparatus for the catalytic manufacture of sulfuric acid
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1931-05-16
Method and apparatus for the purification and sterilization of water
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1923-12-17
Method and apparatus for the production of alcohol-free wines and ciders
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1921-12-05
Method and apparatus for the synthesis of chemically pure hydrochloric acid
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1926-03-20
Method and apparatus for the manufacture of sulfuric acid
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1931-06-10
Method and apparatus for the production of hydrocyanic acid
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1923-11-15
Method and apparatus for making sulfuric acid
FR669193A
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1929-11-13
Method and apparatus for the concentration of nitrogen acid
BE378620A
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1931-04-30
Method and apparatus for continuous rectification of acetic acid
FR627730A
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1927-10-11
Method and apparatus for the biological purification of confined air
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1926-08-17
Method and apparatus for aeration and purification of gases
FR31936E
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1927-06-20
Method and apparatus for the purification of neon
FR589100A
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1925-05-22
Method and apparatus for the manufacture of chemically pure sulfuric acid
FR31499E
(en )
1927-03-14
Method and apparatus for the production of alcohol-free wines and ciders
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(en )
1927-10-18
Process and apparatus for the manufacture of hydrofluoric acid
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1925-12-02
Method and apparatus for continuous rectification of acetic acid
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1924-06-24
Method and apparatus for the production of alcohol-free wines and ciders
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1922-06-06
Method and apparatus for the concentration of acetic acid