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US Patent: 3,346,709
Explosion-proof plug and receptacle with releasable socket engaging means
Patentee:
Arthur I. Appleton (exact or similar names) - Northbrook, IL

USPTO Classifications:
200/51.07, 200/51.09

Tool Categories:
electrical devices

Assignees:
None

Manufacturer:
Appleton Electric Co. - Chicago, IL

Witnesses:
Unknown
Patent Dates:
Applied: Apr. 21, 1965
Granted: Oct. 10, 1967

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Description:
An example of this plug, with a polished metal body, has this patent number plus "PAT CANADA 1968", corresponding to CA-782,662.

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