After putting together a collection of 23 stamps from a two-block segment of Broadway, I then found a number of others around town that are shown here...
Laid by AC Concreters 1968
P.J. Cawood Cement Contractor 1953 (see Denver's Broadway stamps for another Cawood)
Laid by Fabick Concrete 1992 (see below for Fasick - same shop?)
Laid by Fasick Concrete 1982 (same as Fabick, above?)
Ideal Portland Cement Laid by H.V. Carlson
Ideal Portland Cement Laid by John Anderson 1963
Ideal Portland Cement Laid by J.W. Anderson - I particularly like the combination of the san serif "Ideal Portland Cement" with the serif font of the cementer.
A nice combinaton of J.W. and John Anderson
Monolith Cement, Carl Martinson Contractor
Monolith Cement, Edw. D. Morrow Contractor
Rogers Concrete 90
S&S Cement Contractors 1961
S&S Cement Contractors 1966
Laid by John Sandoval 1963 (see below for five years later)
Laid by John Sandoval 1968
Tom Bowley Const. 1982 -- a sidewalk scrape!
Laid by Trico Builders Contractor 1965
Luke's Sidewalk Stamps, Other Cities: Aurora, Colorado | Bakersfield, California | Denver, Colorado - Broadway | Fresno, California | Los Angeles, California | Oakland, California | San Diego, California | San Francisco, California | Santa Barbara, California | Stockton, California | Seattle, Washington | Woodland, California