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" A second pump means is provided on the rotating member to provide a counter flow of treatment fluid into the space between the rotating member and the support tube. The second pump may provide additional support for the rotating member. Means is also... "
Significant NASA Inventions - Page 67
by United States. National Aeronautics and Space Administration - 1973
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Significant NASA Inventions Available for Licensing in Foreign Countries

United States. National Aeronautics and Space Administration - Inventions - 1975 - 96 pages
...500-113 21000 Brookpark Road Cleveland, OH 44135 ' USA [Corresponding US Patent — Application Pending] A surgical tissue macerating and removal tool is disclosed...rotating member to increase or decrease cutting action. CATALYTIC TRIMERIZATION OF AROMATIC NITRILES AND TRIARYL-S-TRIAZINE RING CROSS-LINKED HIGH TEMPERATURE...
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NASA Patent Abstracts Bibliography

United States. National Aeronautics and Space Administration. Scientific and Technical Information Office - Astronautics - 1978
...communication with the first pump to provide for discharge of the macerated material and used treatment fluid A second pump means is provided on the rotating member...rotating member to increase or decrease cutting action. Official Gazette of the US Patent Office N78- 19785* National Aeronautics and Space Administration....
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