Difference between revisions of "Russian patent classifications"
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(the change between systems seems to pertain more to dates granted; we'll hone in on this) |
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| − | Before 1910 Russia had a system of fifteen 'groups', changing | + | Before 1910 Russia had a system of fifteen 'groups', changing circa 1913 (in terms of dates granted) into a bigger numbered system similar to [[Germany]], the [[Netherlands]], and Scandinavia. |
One earlier patent has Group III/V; this probably means it belongs to both groups III and V. | One earlier patent has Group III/V; this probably means it belongs to both groups III and V. | ||
Revision as of 23:58, 10 February 2024
Before 1910 Russia had a system of fifteen 'groups', changing circa 1913 (in terms of dates granted) into a bigger numbered system similar to Germany, the Netherlands, and Scandinavia.
One earlier patent has Group III/V; this probably means it belongs to both groups III and V.
References
| Enclosing categories | Patent classification systems |
|---|---|
| Subcategories | RU Group III, RU Group V, RU Group VIII, RU 46a, RU 62b |
| Keywords | Russia |
| Start year | |
| End year |
