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- How to Use Your 660 I Copier, 1966-1972 -
- 1966-1972
- Collections - Artifact
How to Use Your 660 I Copier, 1966-1972
- Your Key Operator's Instructions: Xerox 660-I and 660-II Copier, circa 1966 -
- circa 1966
- Collections - Artifact
Your Key Operator's Instructions: Xerox 660-I and 660-II Copier, circa 1966
- How to Use Your 660 I Copier, circa 1966 -
- circa 1966
- Collections - Artifact
How to Use Your 660 I Copier, circa 1966
- Fire Extinguisher, circa 1959 - Pressurized fire extinguishers, which propel fire-suppressing chemicals with compressed gas, have been in use since the mid-19th century. Improved designs used less toxic chemicals, or specific chemicals that were most effective against certain types of fires. In all cases, a fire extinguisher was intended to stop or slow a small fire before it grew into something more dangerous.
- circa 1959
- Collections - Artifact
Fire Extinguisher, circa 1959
Pressurized fire extinguishers, which propel fire-suppressing chemicals with compressed gas, have been in use since the mid-19th century. Improved designs used less toxic chemicals, or specific chemicals that were most effective against certain types of fires. In all cases, a fire extinguisher was intended to stop or slow a small fire before it grew into something more dangerous.