Two 1922 pieces of trade lit for valve control indicators : a mechanical type for in-ground reservoirs and a manual about the electrical operation and gate and global valves/ emergency closing for the protection of high pressure steam lines.
Includes:
Trade catalog and manual
Black and white images
Physical description:
2 pieces; 1 box
Language:
English
Type of material:
Trade catalogs
Trade literature
Place:
New York, New York, United States
Date:
1900s
Topic (Romaine term):
Heating; ventilation and air conditioning Search this