Letter to Pearsall from R. L. Patton discussing schedules for the approval from Underwriters Laboratories, as well as discussion of a visit to Denver by Honeywell associates.
(1967). Letter to Duane Pearsall from Robert L. Patton re: Confirming Conversation Details Regarding Temporary Limitations with U.L. Approval. .
Retrieved from: http://digitalcommons.wpi.edu/ms055-02-0007/7