Difference between revisions of "FR 12.6"
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| − | Historic French patent classification XII.6 was for '''Transport and measurement of electricity'''. The category appeared in 1904.<ref>[[Classifications of French patents, 1904-1958]]</ref> | + | Historic '''French patent classification XII.6''' was for '''Transport and measurement of electricity'''. The category appeared in 1904.<ref>[[Classifications of French patents, 1904-1958]]</ref> |
{{Standard techtype reports}} | {{Standard techtype reports}} | ||
{{References}} | {{References}} | ||
{{Techtype | {{Techtype | ||
|Enclosing categories=FR 12 | |Enclosing categories=FR 12 | ||
| + | |Keywords=electricity | ||
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Latest revision as of 10:18, 13 April 2024
Historic French patent classification XII.6 was for Transport and measurement of electricity. The category appeared in 1904.[1] This wiki has 2 patents in category "FR 12.6". Other techtypes related to FR 12.6: Electricity
Patents in category FR 12.6
- Patent FR-1906-371669 (English title: Improvements to electrical devices for transmitting and receiving gunfire control signals, Supplementary to patent: Patent GB-1906-04-12, Filing date: 1906-11-19, Applicant firm: Vickers, Sons, and Maxim)
- Patent FR-1909-400985 (English title: Improvements to electrolytic devices for use in the construction of switches, recorders, meters and other electrical appliances, Inventors: Wilfred Bertram Thorpe, Filing date: 1909-01-12)
References
| Enclosing categories | FR 12 |
|---|---|
| Subcategories | |
| Keywords | Electricity |
| Start year | |
| End year |
