US3656515A
(en )
1972-04-18
Shaped tube
US183160A
(en )
1876-10-10
Improvement in composite metallic girders
US976573A
(en )
1910-11-22
Piling.
GB429112A
(enrdf_load_stackoverflow )
1900-01-01
CN110485627A
(zh )
2019-11-22
一种上下翼板尺寸不同的工字钢及其制作方法
US424798A
(en )
1890-04-01
Composite girder
GB462070A
(en )
1937-03-02
Improvements in or relating to built-up box-section girders or frame members
GB435630A
(en )
1935-09-25
Improvements in girders
US951667A
(en )
1910-03-08
Tunnel-segment.
US1052251A
(en )
1913-02-04
Sheet-piling.
GB461489A
(en )
1937-02-17
Improvements in the manufacture of driving piles
US1004011A
(en )
1911-09-26
Metal piling.
US936529A
(en )
1909-10-12
Sheet-piling.
GB482046A
(enrdf_load_stackoverflow )
1900-01-01
US1498444A
(en )
1924-06-17
Metal sheet piling
GB190618935A
(en )
1907-02-28
Improvements in or relating to Metallic Piling.
GB378575A
(en )
1932-08-18
Improvements in and relating to metal sheet piling
US308825A
(en )
1884-12-02
Structural shape for columns
US850044A
(en )
1907-04-09
Interlocking metal sheet-piling.
GB190600068A
(en )
1906-03-08
Improvements in or relating to Metallic Piling.
GB249573A
(en )
1926-03-29
Improvements in or relating to sheet metal piling
GB1161056A
(en )
1969-08-13
Improved Weldable High Tensile Strength Steel Capable of providing Weld Heat-Affected Zone of High Toughness
GB190611290A
(en )
1906-09-13
Improvements in or relating to Metallic Piling.
GB190811863A
(en )
1908-11-26
Improvements in I-sections for Iron or the like.
GB191213189A
(en )
1913-06-05
Improvements in the Means for and in the Method of Making Metal Pipes and Tubes.