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周仁.jpg (246 × 325 pixels, file size: 48 KB, MIME type: image/jpeg)

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Summary

Description周仁.jpg 中文（臺灣）：周仁院士像
Date no later than 1949
Source 周仁-中國冶金陶瓷學的先師 周俏紈《老交大名師》
Author 不詳

Licensing

This image is in the public domain because it is a mere mechanical scan or photocopy of a public domain original, or – from the available evidence – is so similar to such a scan or photocopy that no copyright protection can be expected to arise. The original itself is in the public domain for the following reason:
Public domainPublic domainfalsefalse
Public domain This image is now in the public domain in China because its term of copyright has expired.

According to copyright laws of the People's Republic of China (with legal jurisdiction in the mainland only, excluding Hong Kong and Macao), amended November 11, 2020, Works of legal persons or organizations without legal personality, or service works, or audiovisual works, enter the public domain 50 years after they were first published, or if unpublished 50 years from creation. For photography works of natural persons whose copyright protection period expires before June 1, 2021 belong to the public domain. All other works of natural persons enter the public domain 50 years after the death of the creator.
According to copyright laws of Republic of China (currently with jurisdiction in Taiwan, Penghu, Kinmen, Matsu, etc.), all photographs and cinematographic works, and all works whose copyright holder is a juristic person, enter the public domain 50 years after they were first published, or if unpublished 50 years from creation, and all other applicable works enter the public domain 50 years after the death of the creator.

Important note: Works of foreign (non-U.S.) origin must be out of copyright or freely licensed in both their home country and the United States in order to be accepted on Commons. Works of Chinese origin that have entered the public domain in the U.S. due to certain circumstances (such as publication in noncompliance with U.S. copyright formalities) may have had their U.S. copyright restored under the Uruguay Round Agreements Act (URAA) if the work was under copyright in its country of origin on the date that the URAA took effect in that country. (For the People's Republic of China, the URAA took effect on January 1, 1996. For the Republic of China (ROC), the URAA took effect on January 1, 2002.)To uploader: Please provide where the image was first published and who created it or held its copyright.
You must also include a United States public domain tag to indicate why this work is in the public domain in the United States. Note that this work might not be in the public domain in countries that do not apply the rule of the shorter term and have copyright terms longer than life of the author plus 50 years. In particular, Mexico is 100 years, Jamaica is 95 years, Colombia is 80 years, Guatemala and Samoa are 75 years, Switzerland and the United States are 70 years, and Venezuela is 60 years.

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This tag is designed for use where there may be a need to assert that any enhancements (eg brightness, contrast, colour-matching, sharpening) are in themselves insufficiently creative to generate a new copyright. It can be used where it is unknown whether any enhancements have been made, as well as when the enhancements are clear but insufficient. For known raw unenhanced scans you can use an appropriate {{PD-old}} tag instead. For usage, see Commons:When to use the PD-scan tag.

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Captions

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depicts

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media type

image/jpeg

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data size

48,904 byte

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height

325 pixel

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width

246 pixel

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checksum

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File history

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Date/TimeThumbnailDimensionsUserComment
current05:08, 9 November 2022Thumbnail for version as of 05:08, 9 November 2022246 × 325 (48 KB)MaterialscientistFFT
05:49, 25 July 2013Thumbnail for version as of 05:49, 25 July 2013261 × 341 (41 KB)UrgaUser created page with UploadWizard

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Metadata

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AuthorPicasa
Date and time of data generation13:42, 25 July 2013
Software usedGIMP 2.4.7
File change date and time14:10, 9 November 2022
Exif version2.2
Unique image ID118368fc67a6b4a2111ad4b887cc9db4