Title: Register point perforating device
Patent number: 143,374
Date granted: 9/30/1873
Notes: Assigned to Edwin Chambers and Cyrus Chambers, Jr., Philadelphia, PA
View this patent at the USPTO.
Title: Register point perforating device
Patent number: 143,374
Date granted: 9/30/1873
Notes: Assigned to Edwin Chambers and Cyrus Chambers, Jr., Philadelphia, PA
View this patent at the USPTO.