Floor riser
United States Patent 1815741

Inventors:
Richardson, Henry F.
Publication Date:
07/21/1931
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Assignee:
Allan, Coggeshall
Bradley S. R.
Cregier A. M.
Alonzo, Bradley B.
Primary Class:
174/484
Other Classes:
174/81, 174/493, 220/3.940
International Classes:
H01R25/00; H02G3/18