File:US Patent 774250.png
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Summary
the first electrical power plug
SEPARABLE ATTACHMENT-PLUG
Inventor: HARVEY HUBBELL
Patent number: 774250
Filing date: Feb 26, 1903
Issue date: Nov 8, 1904
Copyright status:
public domain
Source:
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 22:31, 17 February 2018 | | 1,660 × 1,018 (66 KB) | Thales (talk | contribs) | the first electrical power plug SEPARABLE ATTACHMENT-PLUG Inventor: HARVEY HUBBELL Patent number: 774250 Filing date: Feb 26, 1903 Issue date: Nov 8, 1904 |
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