Patent Assignment
Reel/Frame 004391/0231
Assignment of Assignors Interest.
Recorded: 1985-04-25
Pages: 2
Assignor
BIEK, PAUL A.
Executed: 1985-04-19
Assignee
DRESSER INDUSTRIES, INC., A DE CORP
DALLAS,, TEXAS
Covered Property
(1)
Control Valve Apparatus for Pneumatic Tools
Patent:
4,619,435 →
Application:
06/707,925 →
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.