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Minimum perpendicular clearance between fixed ladder rungs, cleats, and steps and any obstruction behind the ladder must be 7 inches; ... (18 cm), except that the clearance for an eleva-tor pit ladder must be 4.5 inches (11 cm). Minimum perpendicular clearance between the centerline of fixed ladder rungs,
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www.osha.gov/Publications/osha3124.pdf
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2. The circuit of claim 2 wherein the space between said one wall and said rungs has a T-shaped cross section perpendicular to said axial direction. ... A basic ladder-based TWT interaction circuit is shown in FIG. 1. It is a hollow rectangular waveguide 10 having a spaced array of ladder rungs 12 across its midplane.
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www.freepatentsonline.com/4409518.html
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3. A device for stabilising a ladder according to claim 1 characterised in that the third and fourth members (12,14) are longer than the space between adjacent ladder rungs.
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www.freepatentsonline.com/EP0870897.html
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the open rungs of a ladder must be at least 9 inches apart. In a playground for older children, closed risers should be used if the space between steps is less than 12 inches; ladder rungs must be at least 12 inches apart...
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orthoinfo.aaos.org/topic.cfm?topic=A00333
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In this event, the linkage and/or the pawl have to be pushed towards one another until the pawl is located preciselyabove the intervening space between two ladder rungs.
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www.patentgenius.com/patent/6238141.html
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The space between ladder rungs and protective barriers or guardrails has been specifically identified. ASTM guidelines want to insure that kids heads don’t get stuck in between the spaces, so they require that the gaps be less than 3.5 inches or more than 9 inches. Once again, Component Playgrounds manufactures...
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www.componentplaygrounds.com/metalvwood.html
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note that invisible surfaces, like the space between ladder rungs, have the same blocking quality as a wooden crate. if you are standing next to a ladder and someone is chasing you, move behind it, and you will take decreased or no damage the deagle, all rifles, and the para are the only weapons that can penetrate objects.
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www.joe.to/cstrike/strategy/
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In the room, dozen of ladders stand like pillars, each reaching for the sky. In the space between the ladder rungs, Son’s co-artist, The, tied rope in the shape of the Chinese character for tree.
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vietnamnews.vnagency.com.vn/showarticle.php?num=01ART03...
vietnamnews.vnagency.com.vn/showarticle.php?num=01ART030305
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Hinged ladder cover closes and locks over several ladder rungs. ... Ladder is attached to allow plenty of space between the ladder’s rungs and the bin’s sidewall for your feet.
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www.brockgrain.com/products.php?product_id=267
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