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US1620362A
|
|
Girder
|
|
US1638635A
|
|
Girder
|
|
US1638634A
|
|
Girder
|
|
US1638636A
|
|
Electrically-welded girder
|
|
US1638637A
|
|
Girder
|
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US1492992A
|
|
Composite metal work and method of making same
|
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US1493043A
|
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Preparing of metal plates for welding
|
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US1493042A
|
|
Preparing of metal plates for welding
|
|
US1416359A
|
|
Method of side welding wires
|
|
US1332670A
|
|
Method of plugging holes in metal plates
|
|
US1396442A
|
|
Railing, gate, grille, &c.
|
|
US1328927A
|
|
Pole or post
|
|
US1328926A
|
|
Fencepost
|
|
US1332669A
|
|
Metal pole
|
|
US1342818A
|
|
Metallic structure
|
|
CA245213A
|
|
Process of electric welding
|
|
CA245211A
|
|
Method of preparing metal plates for welding
|
|
CA245212A
|
|
Method of preparing metal plates for welding
|
|
CA245210A
|
|
Composite metal work
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