12
Here you can see all page revisions and compare the changes have been made in each revision. Left column shows the page title and transcription in the selected revision, right column shows what have been changed. Unchanged text is highlighted in white, deleted text is highlighted in red, and inserted text is highlighted in green color.
2 revisions | bbarker at Mar 15, 2017 08:10 PM | |
---|---|---|
12
107. How is the machinery protected? ____________________________________________ 109. If colored light, how is the color produced? Describe: ___________________________ 111. State where colored glass is attached, if to illuminating apparatus or to lantern: ______ 112. If colored glass is inside of illuminating apparatus describe its form: Lamps, Burners, Etc. | 12 |