The Nation's Schools, Količina 14Michael Vincent O'Shea McGraw Hill, 1934 |
Iz vsebine knjige
Zadetki 1–3 od 63
Stran 2
... light projectors . radically new in principle and design . Give brilliant , absolutely uniform field illumination , with decidedly greater light output efficiency than formerly accepted standard units .. together with a range , variety ...
... light projectors . radically new in principle and design . Give brilliant , absolutely uniform field illumination , with decidedly greater light output efficiency than formerly accepted standard units .. together with a range , variety ...
Stran 49
... Light Absorption of Colors The color of walls and ceilings has a direct influence on light . The darker colors require greater wattage . Light tinted ceilings and walls , therefore , not only contribute to the cheerfulness of the ...
... Light Absorption of Colors The color of walls and ceilings has a direct influence on light . The darker colors require greater wattage . Light tinted ceilings and walls , therefore , not only contribute to the cheerfulness of the ...
Stran 68
... Light Projector of New Design A spot and flood light projector , built on a new principle , has been placed on the market by Kliegl Bros. , New York City . Brilliant light output , greater efficiency and uniform field illumina- tion are ...
... Light Projector of New Design A spot and flood light projector , built on a new principle , has been placed on the market by Kliegl Bros. , New York City . Brilliant light output , greater efficiency and uniform field illumina- tion are ...
Vsebina
STATE | 6 |
THE very serious | 12 |
The Superintendency Union in Massachusetts fourteen chapters including one deal | 20 |
21 preostalih delov ni prikazanih
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