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| Patents for Erik Henry Aldeborgh | |||||
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| Number | Title | Classification(s) | |||
| GB-389,703 | Improvements in and Connected with Plug Gauges | ||||
| 2,443,880 | Dial Gauge for Measuring Small Bores | 33/544.5 | |||
| DE-840,604 | Bohrlehre | ||||
| CH-332,855 | Inside and Outside Thread Gage | ||||
| CH-339,743 | Messlehre | ||||