P

Inventor

BARRETT JOHN F

US4 patents
⚠️ This page may combine multiple inventors who share the name “BARRETT JOHN F”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NEW ENGLAND MACH

1 patent

AFA CONSOLIDATED CORP

1 patent

(unassigned)

1 patent

UNIVERSAL OXYGEN INC

1 patent