Title:
PRODUCT FOR IMPROVING COAL OR SOLID COMBUSTIBLES IN GENERAL.
United States Patent 0647622


Inventors:
VALLET-ROGEZ FRANCOIS PHYLOGONE (FR)
Application Number:
US1899738076A
Filing Date:
11/23/1899
Assignee:
FRANCOIS PHYLOGONE VALLET-ROGEZ
Primary Class:
Other Classes:
44/603
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