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SECRET SERVICE
Filed: October 31, 1931
PADLOCKS
Owned by: MASTER LOCK COMPANY
Serial Number: 71320685
LUDLOW
Filed: October 20, 1931
GATE VALVES, FIRE HYDRANTS, AIR VALVES, AUTOMATIC DRIP VALVES, SLUICE GATES, BALANCED FLOAT VALVES, FLOAT VALVES, CHECK…
Owned by: LUDLOW VALVE MANUFACTURING COMPANY, THE
Serial Number: 71320236
LUDLOW
Filed: October 20, 1931
GATE VALVES, FIRE HYDRANTS, AIR VALVES, AUTOMATIC DRIP VALVES, SLUICE GATES, BALANCED FLOAT VALVES, FLOAT VALVES, CHECK…
Owned by: LUDLOW VALVE MANUFACTURING COMPANY, THE
Serial Number: 71320237
DUKANE
Filed: October 20, 1931
DRILL RODS AND COLD DRAWN STEEL
Owned by: Pittsburgh Tool Steel Wire Company
Serial Number: 71320240
Image Trademark
Filed: October 12, 1931
METALLIC FENCE POSTS
Owned by: KEYSTONE STEEL & WIRE COMPANY
Serial Number: 71319996
AIRCOWELD
Filed: October 6, 1931
WELDING RODS
Owned by: AIR REDUCTION SALES COMPANY
Serial Number: 71319758
