72404361
Oct 5, 1971
Feb 27, 1973
S.I.R.S.I. SOCIETA ITALIANA RICERCHE SFRUTTAMENTI IDRICI S.R.L.
SPECIAL PUMP OPERATED BY COMPRESSED AIR, SUITABLE FOR BRINGING UP FROM ANY DEPTH WATER OR OTHER LIQUIDS SUCH AS FOR INSTANCE, ACID AND ALKALINE SUBSTANCE AND, IN GENERAL SANDY AND MUDDY LIQUIDS AND THE LIKE
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