Statements (30)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
scientific instrument
|
| gptkbp:alsoKnownAs |
Bubble level
|
| gptkbp:category |
Hand tools
Surveying instruments |
| gptkbp:component |
Bubble
Frame Liquid-filled vial |
| gptkbp:feature |
Accuracy measured in mm/m or in/ft
Vials set at different angles |
| https://www.w3.org/2000/01/rdf-schema#label |
Spirit Level
|
| gptkbp:inventedBy |
1661
Melchisédech Thévenot |
| gptkbp:material |
gptkb:glass
Metal Plastic |
| gptkbp:relatedTo |
Clinometer
Laser level Plumb bob |
| gptkbp:type |
Carpenter's level
Digital level Line level Post level Torpedo level |
| gptkbp:usedFor |
Determining horizontal plane
Determining vertical plane |
| gptkbp:usedIn |
Construction
Surveying Carpentry |
| gptkbp:bfsParent |
gptkb:Marty_Willson-Piper
|
| gptkbp:bfsLayer |
7
|