Concessão da patente
#16.1
07/25/1989
RPI 979
Application data
Number
PI8400019Type
Filing
Publication
The letters patent expired on 07/08/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.
Talk to a specialistLatest action published by the INPI: 07/25/1989. We update with every new RPI gazette, published weekly.
Applicants
Dresser Industries, Inc
US
Inventors
B. B. (pessoa física)
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