This photo caption of President Clinton and Dean Kaman MUST include explanation of Dean Kaman DEMONSTRATING to the President one of his several inventions - the IBOT, a wheelchair capable of “walking” up and down stairs or curbs.

Versions of this image can be found at: http://www.technology.gov/Medal/2000/p_Photos-Clinton.htm archive copy at the Wayback Machine

Based on this, I believe the following Licensing applies:

ไฟล์นี้เป็นงานที่ถ่ายหรือทำโดยพนักงานสำนักการบริหารของประธานาธิบดีแห่งสหรัฐอเมริกา เพื่อเป็นส่วนหนึ่งของหน้าที่ราชการของบุคคลนั้น ในฐานะงานของรัฐบาลกลางแห่งสหรัฐอเมริกา จึงถือเป็นสาธารณสมบัติ. italiano ∙ sicilianu ∙ Deutsch ∙ español ∙ português ∙ English ∙ français ∙ Nederlands ∙ galego ∙ slovenščina ∙ Tiếng Việt ∙ македонски ∙ русский ∙ മലയാളം ∙ ไทย ∙ 한국어 ∙ 日本語 ∙ 中文（简体）‎ ∙ 中文（繁體）‎ ∙ עברית ∙ العربية ∙ فارسی ∙ +/−

From the source website: http://www.technology.gov/Credits.htm archive copy at the Wayback Machine

COPYRIGHT STATUS:

Documents on this server are sponsored by the Technology Administration of the Department of Commerce along with private companies and organizations. Accordingly, the appropriate parties may retain all rights to publish or reproduce these documents, or allow others to do so. All documents available from this server may be protected under the U.S. and Foreign Copyright Laws. Permission to reproduce may be required.

Note: This photograph was taken by White House staff. As a product of the executive office, this image is in the public domain.

"I uploaded this file here, in order to be able to use it in German wikipedia, too"--MatinIGB

This file, which was originally posted to White House photo, was reviewed on 6 June 2016 by reviewer Dyolf77, who confirmed that it was available there under the stated license on that date.