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| Patents for Carl Edvard Johansson | |||||
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| Number | Title | Classification(s) | |||
| SE-17,017 | Gauge Block Sets for Precision Measurement | ||||
| 1,431,583 | Adjustment Device for the Measuring Spindles of Micrometers, Measuring Machine, and the Like | 33/814, 33/826 | |||
| 1,740,695 | Gauge | 33/501.05, 33/501.4, 33/542 | |||
| 1,810,710 | Gauge | 33/501.4 | |||
| 1,889,897 | Surface plate | 33/567 | |||
| 1,991,854 | Apparatus for demonstrating the adhesion of flat surfaces | 434/365, 73/150A, 73/808, 73/826 | |||
| 2,026,684 | Demonstration apparatus | 434/187 | |||