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John Terence Crawford Harvey
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Beaconsfield, EN
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Patent Grant
Method and apparatus for inserting post-stressing tendons in concre...
Patent number
4,095,326
Issue date
Jun 20, 1978
Societe Technique Pour L'Utilisation De La Precontrainte
John Terence Crawford Harvey
B28 - WORKING CEMENT, CLAY, OR STONE