RU 62
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This category encompassed Воздухоплаваняяіе, aeronautics, in two subcategories, RU 62a and RU 62b. It may be that these are for lighter-than-air and heavier-than-air vessels, respectively.
Category 62, with new subdivisions introduced later, continued in use under the Soviet Union.
| Enclosing categories | Russian patent classifications, Soviet patent classifications |
|---|---|
| Subcategories | RU 62a, RU 62b |
| Keywords | |
| Start year | 1913 |
| End year |
Golubev, 1924, index of patents issued during the period 1909–1917, patents granted in 1913 under Class 62:
(At a glance these generally conform to the LTA/HTA split, though one sees 'flying apparatus' in both.)
