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- Patents > 2011-04-28
5,679 Patents published on 04/28/11
SECTION A HUMAN NECESSITIES (989)SECTION B PERFORMING OPERATIONS; TRANSPORTING (731)
SECTION C CHEMISTRY; METALLURGY (419)
SECTION D TEXTILES; PAPER (25)
SECTION E FIXED CONSTRUCTIONS (118)
SECTION F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING (396)
SECTION G PHYSICS (1,581)
SECTION H ELECTRICITY (1,420)