| F | SK | MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING |
| F16 | KL | ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL |
| F16S | UKL | CONSTRUCTIONAL ELEMENTS IN GENERAL; STRUCTURES BUILT-UP FROM SUCH ELEMENTS, IN GENERAL |
| F16S 1/00 | HGR | Sheets, panels, or other members of similar proportions; Constructions comprising assemblies of such members (built-up gratings F16S 3/00; layered products B32B) |
| F16S 1/02 | UGR1 | | . | designed for being secured together edge to edge, e.g. at an angle; Assemblies thereof |
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| F16S 1/04 | UGR1 | |
| F16S 1/06 | UGR2 | |
| F16S 1/08 | UGR2 | | . . | by cutting or perforating, with or without deformation |
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| F16S 1/10 | UGR1 | | . | Composite members, e.g. with ribs or flanges attached (F16S 1/02 takes precedence) |
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| F16S 1/12 | UGR1 | | . | of substantial thickness, e.g. with varying thickness, with channels |
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| F16S 1/14 | UGR1 | | . | Assemblies of such members with members of forms covered by group F16S 3/00 or F16S 5/00 (such other members being for jointing only F16S 1/02) |
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| F16S 3/00 | HGR | Elongated members, e.g. profiled members; Assemblies thereof; Gratings or grilles (gratings or grilles formed from a sheet or the like F16S 1/00 , particularly F16S 1/08; frames for doors, windows or the like E06B 1/00 , E06B 3/00) |
| F16S 3/02 | UGR1 | | . | composed of two or more elongated members secured together side by side |
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| F16S 3/04 | UGR1 | | . | designed for being joined to similar members in various relative positions |
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| F16S 3/06 | UGR1 | |
| F16S 3/08 | UGR2 | | . . | forming frameworks, e.g. gratings |
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| F16S 5/00 | HGR | Other constructional members not restricted to an application fully provided for in a single class |