Road structure – process – or apparatus – Pavement – Modules or blocks
Patent
1977-04-21
1978-11-28
Byers, Jr., Nile C.
Road structure, process, or apparatus
Pavement
Modules or blocks
52659, E01C 508
Patent
active
041273494
ABSTRACT:
A concrete paving stone having single flags held together with a number of concrete ribs between adjacent stones such that the ribs will resist breaking during ordinary handling but will break upon the application of vibration after the paving stone is laid on a level sand bed to thereby provide a number of unconnected flags.
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patent: 3242832 (1966-03-01), Schnaar
patent: 3557669 (1971-01-01), Fenton
patent: 3808085 (1974-04-01), Givens
patent: 3891340 (1975-06-01), Bolli
patent: 3922105 (1975-11-01), Bolli
Byers Jr. Nile C.
SF-Sten A/S
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