ES29495A1 -
A perfect procedure for the extraction of oil and glue or gelatin from fish waste and other materials that may yield oil or gelatin.
- Google Patents
A perfect procedure for the extraction of oil and glue or gelatin from fish waste and other materials that may yield oil or gelatin.
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Individual
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Individual
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ES29495A1902-03-201902-03-20
A perfect procedure for the extraction of oil and glue or gelatin from fish waste and other materials that may yield oil or gelatin.
ExpiredES29495A1
(en)
An improved procedure for the separation or extraction of the fumes or vapors that emanate from the calcination and smelting of certain sulphide minerals.
A mechanical procedure for the classification of minerals, earths, coals and other matters, of pneumatic propulsion with the apparatus that are essentially described.