The Nation's Schools, Količina 28Michael Vincent O'Shea McGraw Hill, 1941 |
Iz vsebine knjige
Zadetki 1–3 od 73
Stran 6
... clean sponge and clear water . Equipment and Methods The equipment that is needed to clean walls effectively , according to Chester F. Hayford , school janitor , Fessenden , N.D. , is as follows : two pails of about 10 quart capacity ; ...
... clean sponge and clear water . Equipment and Methods The equipment that is needed to clean walls effectively , according to Chester F. Hayford , school janitor , Fessenden , N.D. , is as follows : two pails of about 10 quart capacity ; ...
Stran 8
... clean water and a clean cloth . Change the water often . Wipe dry after rinsing . It is wel ! to clean the wall in uniformly sized spaces or portions , so that the cleaning solution will not be left longer on one place than on another ...
... clean water and a clean cloth . Change the water often . Wipe dry after rinsing . It is wel ! to clean the wall in uniformly sized spaces or portions , so that the cleaning solution will not be left longer on one place than on another ...
Stran 6
... cleaning solution and another for the rinse water ; clean sponges , and ladders or scaffolding . The cleaning compound should be such that it will cut the dirt without injuring the painted surface . " Procedure in wall washing varies ...
... cleaning solution and another for the rinse water ; clean sponges , and ladders or scaffolding . The cleaning compound should be such that it will cut the dirt without injuring the painted surface . " Procedure in wall washing varies ...
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