and he brings this expe- Few or many blocks may be taken up and replaced, without easily obtained, aconcrete foundation of proper thickness, in the least disturbing those remaining. The strips or pick- rience to bear upon the construction of the improved pave- well rolled, may be uscd if desired.… … This invention is covered by a number of United States thereby weakening the general structure, are not used in this other at their base, forming wedge-shaped interstices across the street ; and square spaces (on a line with the street), ae patents, issued in 1869 and 1870, embracing the…
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