Image: Test samples 1935 Bakelite Review Silver Anniversary p17

Description: Photograph of Bakelite resin testing laboratory. Image from Bakelite review : silver anniversary number, 1910-1935 published by Bakelite Corporation. New York, NY: Bakelite Corporation, 1935, p. 17. Copyright not renewed. The caption reads: "Double check. Laboratory stills test samples of the mixed ingredients of each charge to guide the still room in resin production."
Title: Resin testing laboratory.
Credit: Chemical Heritage Foundation
Author: Unknown
Permission: This file was provided to Wikimedia Commons by the Chemical Heritage Foundation as part of a cooperation project. کوردیی ناوەندی | English | العربية | Français | Italiano | Македонски | Nederlands | Português | +/− This work is in the public domain because it was published in the United States between 1923 and 1963 and although there may or may not have been a copyright notice, the copyright was not renewed. Unless its author has been dead for the required period, it is copyrighted in the countries or areas that do not apply the rule of the shorter term for US works, such as Canada (50 pma), Mainland China (50 pma, not Hong Kong or Macao), Germany (70 pma), Mexico (100 pma), Switzerland (70 pma), and other countries with individual treaties. See Commons:Hirtle chart for further explanation. Deutsch | English | español | français | italiano | 日本語 | 한국어 | македонски | português | português do Brasil | русский | українська | +/−
Usage Terms: Public domain
License: Public domain
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