Title:
Multiple head with regulators
United States Patent 2687018
Inventors:
Baldwin Jr., John D.
Johnson, Andrew G.
Publication Date:
08/24/1954
Other Classes:
137/505, 137/505.12, 137/507, 222/394, 222/482
International Classes:
F17C13/04; G05D16/06; F17C13/04; G05D16/04