March 1934 Environmental control apparatus Trademarks by day
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Environmental control apparatus Trademarks filed in March 1934
VAPOCARB
Filed: March 16, 1934
ELECTRIC FURNACES AND OVENS, ELECTRIC HEAT-TREATING FURNACES AND OVENS, AND REAGENT-TREATING RETORTS,FOR CASE-FORMING CARBURIZATION…
Owned by: LEEDS AND NORTHUP COMPANY
Serial Number: 71348712
