https://www.datamp.org/ Recently added patents en-us https://www.datamp.org/patents/displayPatent.php?id=82957&pn=D180,004 Metal-Cutting Shears Patentee: Clarence M. Anderson - Chicago IL Granted:1957-04-09

The design appears to aim for weight reduction by having open web handles. The patent number appears together with 2,801,467 on MALCO "ANDY" shears. Term of patent 14 years. A 1972 MALCO catalog listing shows these made of cast aluminum with replaceable shear blades. The physical appearance also copies Anderson's patent no. 2,801,468, where the drawings include details on how the handle shape facilitates gripping the shears. Patents D101,791, 2,343,527 and 2,661,534 cited as references.
This is one of 84,658 patents currently in the database at datamp.org

]]>