File:Butterworth-hatch-US-Navy.jpg

Butterworth-hatch-US-Navy.jpg (160 × 222 pixels, file size: 13 KB, MIME type: image/jpeg)

Summary

Description
English: Photograph of a Butterworth access hatch showing ventilation tube, circa 1970
Date Unknown date
Source United States Navy, Naval Safety Center, Acquisition Safety -- Confined Spaces
Author United States Navy

Licensing

Public domain
This file is a work of a sailor or employee of the U.S. Navy, taken or made as part of that person's official duties. As a work of the U.S. federal government, it is in the public domain in the United States.
This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.

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912097ed857ba8df62ef89753ed1289aceb95720

13,005 byte

222 pixel

160 pixel

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Date/TimeThumbnailDimensionsUserComment
current16:48, 15 June 2014Thumbnail for version as of 16:48, 15 June 2014160 × 222 (13 KB)BejnarUser created page with UploadWizard

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