E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
E04G21/14—Conveying or assembling building elements
E04G21/16—Tools or apparatus
E04G21/18—Adjusting tools; Templates
E04G21/1808—Holders for bricklayers' lines, bricklayers' bars; Sloping braces
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Engineering & Computer Science
(AREA)
Architecture
(AREA)
Mechanical Engineering
(AREA)
Civil Engineering
(AREA)
Structural Engineering
(AREA)
Conveying And Assembling Of Building Elements In Situ
(AREA)