 Pilled construction, such as concrete blocks with the cells filled with screened sand, weak concrete, cement mortar or other effective bullet-resistant filler; or exterior and interior wooden walls not less than 6 inches apart with the space between filled...  Miners' Circular - Page 421947Full view - About this book
 | Administrative law - 1972 - 186 pages
...construction, such as concrete blocks with the cells filled with screened sand, weak concrete, cement mortar or other effective bullet-resistant filler;...walls covered with sheet iron not lighter than No. 26 gauge, or other fireresistant material; or (c) Lined construction, such as steel platr not lighter... | |
 | Administrative law - 1972 - 206 pages
...masonry, medium soft brick or wood; or (b) Pilled construction, such as concrete blocks with the cells filled with screened sand, weak concrete, cement mortar or other effective bullet-resistant filler; or exterior and interior wooden walls not less than 6 inches apart with the space between filled with... | |
 | Mines and mineral resources - 1946 - 946 pages
...construction, such as concrete blocks with the cells filled with screened sand, weak concrete, cement mortar, or other effective bullet-resistant filler;...sand, weak concrete, cement mortar, or other effective bullet— resistant filler, and the exterior. walls covered with sheet iron not lighter than No. 26... | |
 | Administrative law - 1967 - 454 pages
...masonry, medium soft brick or wood; or (b) Filled construction, such as concrete blocks with the cells filled with screened sand, weak concrete, cement mortar or other effective bullet-resistant filler; or exterior and interior wooden walls not less than 6 inches apart with the space between filled with... | |
 | Administrative law - 1972 - 200 pages
...masonry, medium soft brick or wood; or (b) Pilled construction, such as concrete blocks with the cells filled with screened sand, weak concrete, cement mortar or other effective bullet-resistant filler; or exterior and interior wooden walls not less than 6 inches apart with the space between filled with... | |
 | Administrative law - 1969 - 448 pages
...masonry, medium soft brick or wood; or (b) Filled construction, such as concrete blocks with the cells filled with screened sand, weak concrete, cement mortar or other effective bullet-resistant filler; or exterior and interior wooden walls not less than 6 inches apart with the space between filled with... | |
 | Mines and mineral resources - 1946 - 982 pages
...masonry,, mediumsoft brick, or wood; or (ii) Filled construction, such as concrete blocks with the cells filled with screened sand, weak concrete, cement mortar, or other effective bullet-resistant filler; or exterior and interior wooden walls not less than 6 inches apart, with the space between filled with... | |
 | Administrative law - 1970 - 436 pages
...masonry, medium soft brick or wood; or (b) Filled construction, such as concrete blocks with the cells filled with screened sand, weak concrete, cement mortar or other effective bullet-resistant filler; or exterior and interior wooden walls not less than 6 inches apart with the space between filled with... | |
 | Administrative law - 1971 - 192 pages
...masonry, medium soft brick or wood; or (b) Pilled construction, such as concrete blocks with the cells filled with screened sand, weak concrete, cement mortar or other effective bullet-resistant filler; or exterior and interior wooden walls not less than 6 inches apart with the space between filled with... | |
 | Administrative law - 1968 - 432 pages
...masonry, medium soft brick or wood; or (b) Filled construction, such as concrete blocks with the cells filled with screened sand, weak concrete, cement mortar or other effective bullet-resistant filler; or exterior and interior wooden walls not less than 6 inches apart with the space between filled with... | |
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