CH58724A
(en )
1913-04-01
Method of closing the longitudinal seam of pipes with the help of resistance welding
CH70795A
(en )
1915-11-01
Method and device for pulling the inner half of a pipe bend consisting of two longitudinal parts with lateral seams
CH58249A
(en )
1913-03-01
Device for closing the longitudinal seam of pipes by means of electrical resistance welding
DK16444C
(en )
1912-09-23
Method for electrical resistance welding of pipe seams.
CH61641A
(en )
1913-10-01
Method of joining rails
CH68864A
(en )
1915-05-01
Method of painting
AT70927B
(en )
1916-01-10
Method for bracing construction pits.
AT25743B
(en )
1906-09-25
Method for soldering the overlapping points of tubes made of helically wound metal strips.
CH55562A
(en )
1912-09-02
Process for lining cylindrical objects with soft metal
CH58250A
(en )
1913-03-01
Device for achieving a uniform longitudinal seam in electrically welded pipes
CH72856A
(en )
1916-07-17
Process for drawing thin-walled pipes
CH70485A
(en )
1915-10-01
Process for producing the round seams of two pipe sections to be butt welded together
CH63698A
(en )
1914-02-16
Method and device for sealing gas pipes
CH64302A
(en )
1914-03-16
Method for sealing vessels
CH59208A
(en )
1913-05-02
Device to prevent the seam edges from jumping over one another when electrically welding the longitudinal seams of pipes
CH63395A
(en )
1914-01-16
Tool for straightening pipes
AT69282B
(en )
1915-07-10
Device for joining ammunition elements together.
CH69253A
(en )
1915-06-01
Method of wrapping objects
CH69710A
(en )
1915-07-16
Method of filling vessels
DK16229C
(en )
1912-07-22
Device for welding the longitudinal seam on pipes by means of electrodes placed on both sides of the seam.
CH55410A
(en )
1912-08-16
Process for wrapping metal rods with celluloid
CH46182A
(en )
1910-02-01
Method of sealing barrels
AT71252B
(en )
1916-02-25
Method of loading stoves.
CH60223A
(en )
1913-07-01
Metal seal for securing cord locks
CH48861A
(en )
1910-12-01
Method and device for sprinkling railways with water