EQUI-AIR
Filed: May 19, 1964
BALANCING HOISTS
Owned by: D. W. ZIMMERMAN MFG., INC.
Serial Number: 72193832
BALANCE-AIR
Filed: January 25, 1965
OVERHEAD-SUPPORTED, FLUID-OPERATED BALANCER FOR CONTROLLING AND POSITIONING TOOLS AND OTHER OBJECTS DURING OPERATION OR…
Owned by: D. W. ZIMMERMAN MFG., INC.
Serial Number: 72210630
ZIM-AIR
Filed: February 17, 1965
DEVICES FOR SUSPENDING TOOLS OR OTHER OBJECTS DURING TRANSPORTATION AND MANIPULATION THEREOF
Owned by: D. W. ZIMMERMAN MFG., INC.
Serial Number: 72212267
MODULE-AIR
Filed: April 4, 1974
FLUID-OPERATED, LOAD-HANDLING DEVICES-NAMELY, HOISTS AND BALANCERS, AND AUXILIARY CONTROLS THEREFOR
Owned by: D. W. ZIMMERMAN MFG., INC.
Serial Number: 73017919
Z RAIL
Filed: November 8, 1984
BRIDGE CRANES
Owned by: D. W. ZIMMERMAN MFG., INC.
Serial Number: 73507855
TASK-TAILORED
Filed: November 19, 1984
CUSTOM DESIGNED METAL WORKPIECE HOLDERS, FOR SECURING WORKPIECES TO BE HOISTED
Owned by: D. W. ZIMMERMAN MFG., INC.
Serial Number: 73509620
