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| Item# | Type | Model No. | Match No. | Variant No. | Model Name | Maker | Country | Production or Serial No. | Material | Scale Length | Date | Condition |
Notes: "Improved glass indicator. Patent notation changed from dates to patent number (i.e PAT. 1,930,832). Model number on slide rule now matches model number listed in K&E catalog."
Click on the Condition Code to obtain more details.
