Inventor
WORLEY ROBERT F
US6 patents
Patents
6 patentsUS4648230AMar 10, 1987
Locking connection for suspension ceiling grid systems
DONN INC36 citations91
US4611453ASep 16, 1986
Suspension ceiling grid connectors
DONN INC30 citations90
US4520609AJun 4, 1985
Grid tee for suspension ceilings or the like
DONN INC48 citations86
US4621474ANov 11, 1986
Grid connectors for suspension ceiling
DONN INC17 citations71
US4448006AMay 15, 1984
Grid ceiling structure and method of converting
DONN INC8 citations71
US4312158AJan 26, 1982
Fire-resistant demountable partition structure
DONN INC13 citations70