United States Patent 1715999
Inventors:
Ernst, Flammer
Christian, Kelber
Publication Date:
06/04/1929
Assignee:
Ernst, Flammer
Christian, Kelber
Other Classes:
510/484, 510/461, 510/377, 510/483, 510/445
International Classes:
C11D9/22; C11D9/42; C11D13/20; C11D17/06; C11D9/04; C11D13/00