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Terraspace Inc
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MD, US
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Patents Grants
last 30 patents
Information
Patent Grant
Apparatus for breaking rock or concrete
Patent number
4,311,343
Issue date
Jan 19, 1982
Terraspace, Inc.
William C. Cooley
E21 - EARTH DRILLING MINING
NSF Awards
last 12 months
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Count: 3
NSF Awards
Information
NSF Award
Hydraulic Bursting of Concrete and Rock--Phase Ii
Award Id
7821038
Effective date
Mar 1, 1979
Information
NSF Award
Hydraulic Bursting of Concrete and Rock
Award Id
7719804
Effective date
Oct 1, 1977
Information
NSF Award
CORRELATION OF DATA ON ROCK DISINTEGRATION BY LIQUID JETS
Award Id
7358511
Effective date
Jan 1, 1973