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Werner Co. is a privately owned company involved with the manufacturing and distribution of aluminum and fiberglass ladders, light duty construction equipment, fall protection equipment, and similar products. Werner Co. is headquartered in Itasca, Illinois.
In 1960, it expanded into a stand-alone piling and ground improvement company and, in 1975, it acquired the German company Johann Keller and took on that name. [5] In 1984, Keller bought Hayward Baker Inc., a US ground engineering business. [6] In 1990, it was the subject of a management buy-out from GKN plc supported by Candover. [6]
The most common modern type is made with two separate ladders connected to each other at the upper end, where there is a platform with an area big enough to stand with both feet on it, having the rest of steps the same area, but not in all models, for some step stools have classical ladder steps. This folding design arrangement eliminates the ...
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John H. Balsley (May 29, 1823 – March 12, 1895) was a master carpenter and inventor, inventing a practical folding wooden stepladder and receiving the first U.S. patent issued for a safety stepladder in the year. He was born in Connellsville, Fayette County, Pennsylvania to George H. and Sarah (Shallenberger) Balsley. His father was also a ...
An attic ladder (US) or loft ladder (UK) is a retractable ladder that is installed into an attic door/access panel. They are used as an inexpensive and compact alternative to having a stairway that ascends to the attic of a building. They are useful in areas with space constraints that would hinder the installation of a standard staircase.