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Patents
Patents Assigned to Redland, Inc.
Patents Assigned to Redland, Inc.
Safety bumper for guiding the visually impaired
Patent number:
D356274
Type:
Grant
Filed:
April 5, 1993
Date of Patent:
March 14, 1995
Assignee:
Redland, Inc.
Inventors:
John R. Ross, John R. Murray